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First Aid - Mnemonics and other key points
key points from First Aid for USMLE Step 1
341
Medical
Professional
04/14/2012

Additional Medical Flashcards

 


 

Cards

Term
Causes of Increased Anion Gap Metabolic Acidosis
Definition

MUDPILES

 

Methanol

Uremia

DKA

Paraldehyde or Phenformin

Iron Tablets or INH

Lactic Acidosis

Ethylene glycol (oxalic acid)

Salicylates

Term
What are the common causes of DIC?
Definition

STOP Making New Thrombi

 

Sepsis (gram neg)

Trauma

Obstetric complications

Pancreatitis (acute)

Malignancy

Nephrotic syndrome

Transfusion

Term
Which antibiotics are the Beta-lactamase inhibitors?
Definition

CAST

 

Clavulanic Acid, Sulbactam, Tazobactam

 

These are often added to penicillin antibiotics to protect the antibiotic from destruction by beta-lactamase

Term
Which reactions is NADPH used in?
Definition
1. Anabolic processes
2. Respiratory burst
3. P-450
4. Glutathione reductase
Term
What does the pyruvate dehydrogenase complex consist of?
Definition
1. Pyrophosphate (B1, thiamine; TPP)
2. FAD (B2, riboflavin)
3. NAD (B3, niacin)
4. CoA (B5, pantothenate)
5. Lipoic acid
Term
What can cause Pyruvate dehydrogenase deficiency and what are the findings?

What are the only purely ketogenic amino acids?
Definition
congenital or acquired (as in alcoholics due to B1 deficiency), the findings are neurologic deficits, treat with inc. intake of ketogenic nutrients (e.g. high fat content of inc. lysine and leucine)

Lysine and Leucine
Term
What are the essential amino acids and which are glucogenic, ketogenic or both?
Definition
Glucogenic: Met, Val, Arg, His
Glucogenic/ketogenic: Ile, Phe, Thr, Trp
Ketogenic: Leu, Lys
Term
Which amino acids are acidic and which are basic?
Definition
Acidic: Asp and Glu (negatively charged at body pH)

Basic: Arg, Lys, and His
(Arg is the most basic)
Term
Von Gierke's disease

1) Findings
2) deficient enzyme
Definition
1. severe fasting hypoglycemia, increased glycogen in liver, inc. blood lactate, hepatomegaly

2. Glucose-6- phosphatase
Term
Pompe's disease

1. Findings
2. Deficient enzyme
Definition
1. Pompe's trashes the Pump (heart, liver and muscle)
cardiomegaly and systemic findings leading to early death

2. Lysosomal alpha-1,4-glucosidase (acid maltase)
Term
Cori's disease

1. Findings
2. Deficient enzyme
Definition
1. milder form of von gierke's disease with normal blood lactate level, gluconeogenesis is intact

2. Debranching enzyme
Term
McArdle's disease

1. Findings
2. Deficient enzyme
Definition
1. McArdle's = Muscle
increased glycogen in muscle, but cannot break it down, leading to painful muscle cramps, myoglobinuria with strenuous exercise

2. Skeletal muscle glycogen phosphorylase
Term
Fabry's Disease

1. Findings
2. Deficient enzyme
3. accumulated substrate
Definition
1. peripheral neuropathy of hands/feet, angiokeratomas, cardiovascular/renal disease

2. alpha-galactosidase

3. ceramide trihexoside
Term
What is the inheritance of Lysosomal Storage diseases?
Definition
All are autosomal recessive except Fabry's disease which is X-linked recessive
Term
Gaucher's disease (the most common lysosomal storage disease)

1. Findings
2. deficient enzyme
3. accumulated substrate
Definition
1. Hepatosplenomegaly, aseptic necrosis of femur, bone crises, Gaucher's cells (macrophages that look like crumpled tissue paper)

2. Glucocerebrosidase

3. Glucocerebroside
Term
Niemann-Pick disease

1. Findings
2. deficient enzyme
3. accumulated substrate
Definition
1. Progressive neurodegeneration, developmental delay, cherry-red spot on macula, lysosomes with onion skin, no hepatosplenomegaly (vs. Niemann-Pick)

2. Hexosaminidase A

3. GM2 ganglioside
Term
Krabbe's disease

1. Findings
2. deficient enzyme
3. accumulated substrate
Definition
1. Peripheral neuropathy, developmental delay, optic atrophy, globoid cells

2. beta-galactocerebrosidase

3. Galactocerebroside
Term
Metachromatic leukodystrophy

1. Findings
2. Deficient enzyme
3. accumulated substrate
Definition
1. central and peripheral demyelination w/ ataxia, dementia

2. arylsulfatase A

3. Cerebroside sulfate
Term
What are the 2 mucopolysaccharidsoes and how do you distinguish between the two?
Definition
Hurler's syndrome and Hunter's syndrome

Hunters see clearly (no corneal clouding) and aim for the X (X-linked recessive)
Term
Which ketone body does a urine test for ketones detect?
Definition
acetoacetate
Term
What are the body's energy sources in the following stages?
1. Fed state (after a meal)
2. Fasting (between meals)
3. Starvation (days 1-3)
4. Starvation after day 3
Definition
1. glycolysis and aerobic respiration, insulin stimulates storage of lipids, proteins and glycogen

2. Hepatic glycogenolysis (major); hepatic gluconeogenesis and adipose release of FFA (minor)

3. Hepatic glycogenolysis, adipose release of FFA, muscle and liver which sift fuel use from glucose to FFA, Hepatic gluconeogenesis from peripheral tissue lactate and alanine as well as from adipose tissue glycerol and propionyl CoA

4. Adipose sotres (ketone bodies become main source of energy for the brain and heart).
Term
What is the function of the following Major Apolipoproteins?

1. E
2. A-I
3. C-II
4. B-48
5. B-100
Definition
1. mediates remnant uptake

2. activates LCAT

3. lipoprotein lipase cofactor

4. mediates chylomicron secretion

5. binds LDL receptor
Term
Abetalipoproteinemia

1. mechanism of deficiency
2. findings
Definition
1. hereditary inability to synthesize lipoproteins due to deficiencies in apoB-100 and apoB-48. Autosomal recessive

2. failure to thrive, steatorrhea, acathocyosis, ataxia, night blindness
Term
Which bugs do not Gram stain well?
Definition

These Rascals May Microscopically Lack Color

 

Treponema (too thin to be visualized)

Rickettsia (intracellular parasite)

Mycobacteria (high lipid content cell wall)

Mycoplasma (no cell wall)

Legionella pneumophila (primarily intracellular)

Chlamydia (intracellular parasite; lacks muramic acid in cell wall) 

 

 

Term
Special culture media for H. influenzae
Definition

Chocolate agar with factors V (NAD+) and X (hematin)

 

Term
Special culture media for N. gonorrhoeae
Definition
Thayer-Martin (or VPN) media - Vancomycin (inhibits gram positive organisms), Polymyxin (inhibits gram negative organisms), and Nystatin (inhibits fungi); "to connect to Neisseria, please use your VPN client"
Term
Special culture media used for B. pertussis 
Definition
Bordet-Gengou (potato) agar 
Term
Special culture media for C. diphtheriae 
Definition
Tellurite plate, Loffler's media
Term
special culture media for M. tuberculosis
Definition
Lowenstein-Jensen agar
Term
Special culture media for M. pneumoniae
Definition
Eaton's agar
Term
special culture media for Lactose fermenting enterics
Definition
Pink colonies on MacConkey's agar (fermentation produces acid, turning plate pink); E.coli is also grown on eosin-methylene blue (EMB) agar as blue-black colonies with metallic sheen
Term
special culture media for Legionella
Definition
Charcoal yeast extract agar buffered with cysteine and iron
Term
special culture media for fungi
Definition
Sabouraud's agar
Term
Which bugs are obligate aerobes?
Definition

 Nagging Pests Must Breathe

 


Nocardia, Pseudomonas aeruginosa, Mycobacterium tuberculosis, and Bacillus 

Term
Which bugs are obligate anaerobes?
Definition

Anaerobes Can't breathe air

 

Clostridium, Bacteroides, and Actinomyces

 

They lack catalase and/or superoxide dismutase and are susceptible to oxidative damage

Term
Which bugs are obligate intracellular?
Definition

Stay inside (cells) when it is Really Cold

 

Rickettsia, Chlamydia 

These can't make their own ATP

Term
Which bugs are facultative intracellular?
Definition

Some Nasty Bugs May Live FacultativeLY



Salmonella, Neisseria, Brucella, Mycobacterium, Listeria, Francisella, Legionella, Yersinia pestis

Term
Which bacteria are encapsulated?
Definition

SHiN SKiS (group B)

 

Streptococcus pneumoniae, Haemophilus influenzae type B, Neisseria meningitidis, Salmonella, Klebsiella pneumoniae, group B Strep

Term
What are the catalase-positive organisms?
Definition

You need SSPACE for your cats

 

S. aureus, Serratia, Pseudomonas, Actinomyces, Candida, E.coli 

Term
Urease positive bugs
Definition

PUNCH-K



Proteus, Ureaplasma, Nocardia, Cryptococcus, H.pylori, Klebsiella 

Term
Novobiocin in Staphylococci
Definition

On the offices's staph retreat, there was NO StRES


NOvobiocin - Saprophyticus is Resistant ; Epidermidis is Sensitive 

Term
Optichin and alpha hemolytic Streptococcus
Definition

OVRPS (overpass)

 

Optochin - Viridans is Resistant; Pneumoniae is Sensitive

Term
Bacitracin and beta hemolytic Streptococci
Definition

B-BRAS

 

Bacitracin -- group B strep are Resistant; group A strep are Sensitive

Term
What are some of the manifestations of rheumatic fever? 
Definition
No "rheum" for SPECCulation: Subcutaneous plaques, Polyarthritis, Erythema marginatum, Chorea, Carditis
Term
What are the ABCDEFG's of Corynebacterium diphtheriae?
Definition

ADP ribosylation

Beta-prophage

Corynebacterium

Diphtheria

Elongation Factor 2

Granules 

Term

What are some of the spore-forming gram-positive bacteria?

 

1) found in soil

2) Others

Definition

1) Bacillus anthracis, Clostridium perfringens, C. tetani

 

2) B. cereus, C. botulinum, Coxiella burnetii 

Term

1) What is the main purpose of autoclaving?

 

2) At what phase of bacterial growth are spores formed?

Definition

1) killing bacterial spores

 

2) formed at the end of the stationary phase (when nutrients are limited)

Term
Which drugs do you use to treat Nocardia vs. Actinomyces?
Definition

SNAP:

 

Sulfa for Nocardia

Actinomyces use penicillin 

 

Actinomyces and Nocardia are gram positive rods that form long branching filaments resembling fungi 

Term
What is a Ghon complex composed of?
Definition
TB granulomas (Ghon focus + lobar and perihilar lymph node involvement).  Reflects primary infection or exposure. 
Term
Which bacteria are spirochetes?
Definition

BLT. B is Big

 

Borrelia (Big size), Leptospira, Treponema

Term
Which organism causes Weil's disease and what are the manifestations?
Definition

Leptospira interrogans (question mark-shaped bacteria) 

 

Weil's disease is also called icterohemorrhagic leptospirosis - severe form with jaundice and azotemia from liver and kidney dysfunction; fever, hemorrhage, and anemia

Term
What are the manifestations of Lyme disease and which organism causes Lyme disease?
Definition

Caused by Borrelia burgdorferi

 

BAKE a Key LYME pie:  Bell's palsy (bilateral), Arthritis, Kardiac block, Erythema migrans

Term
What is an Argyll Robertson pupil and what disease is it associated with?
Definition

pupil constricts with accomodation but is not reactive to light.  "Prostitute's pupil" (accomodates but does not react)

 

Associated with tertiary syphillis

Term
What are the possible VDRL false positives for syphillis?
Definition

VDRL detects nonspecific antibody that reacts with beef cardiolipin.

 

VDRL: Viruses (mono, hepatitis), Drugs, Rheumatic fever, Lupus and leprosy

Term

Given the following species, identify the disease, transmission and source.

 

1) Bartonella spp.

2) Borrelia burgdorferi

3) Borrelia recurrentis

4) Brucella spp. 

5) Campylobacter

6) Chlamydophila psittaci

Definition

1) Cat scratch disease; cat scratch

2) Lyme disease; Ixodes ticks (live on deer and mice)

3) Recurrent fever; Louse (recurrent b/c of variable surface antigens)

4) Brucellosis/undulant fever; unpasteurized dairy

5) Bloody Diarrhea ; puppies, livestock (also fecal-oral, ingestion, sexual transmission)

6) Psittacosis; parrots and other birds

Term

Given the following species, identify the disease, transmission and source.

 

1) Coxiella burnetii

2) Ehrlichiosis chaffeensis

3) Francisella tularensis

4) Leptospira spp.

5) Mycobacterium leprae

6) Pasteurella multocida

7) Rickettsia prowazekii

8) Rickettsia rickettsii

9) Rickettsia typhus

10) Yersinia pestis

Definition

1) Q Fever ; spores from tick feces and cattle placenta

2) Ehrlichiosis; Lone Star tick

3) Tularemia ; ticks, rabbits, deer fly

4) Leptospirosis ; animal urine

5) Leprosy; Armadillos

6) Cellulitis, osteomyelitis; animal bite, cats, dogs

7) epidemic typhus; louse

8) Rocky Mountain Spotted Fever ; Dermacenter tick bite

9) Endemic typhus, Fleas

10) Plague; flea bite, rodents, prairie dogs

Term
Which infections show rashes on palms and soles?
Definition

you drive CARS using your palms and soles


Coxsackie A infection (hand, foot, and mouth disease)

Rocky Mountain Spotted Fever

Syphillis

Term
Which systemic mycosis has a "captains wheel" appearance and is found most in Latin America?
Definition
Para-coccidiodomycosis 
Term
What are the systemic mycoses and what do they generally cause?
Definition

Histoplasmosis, Blastomycosis, Coccidioidomycosis, Para-coccidioidomycosis (all of these are dimorphic fungi) 

 

They generally cause pneumonia and can disseminate 

Term
Which nematodes are ingested and which are cutaneous?
Definition

Ingested - Enterobius, Ascaris, Trichinella --> you'll get sick if you EAT these!

 

Cutaneous - Strongyloides, Anclostoma, Necator --> These get into your feet from the SANd

Term

Which parasite fits best with each finding?

1) Brain cysts, seizures

2)Liver cysts

3) B12 deficiency

4) Biliary tract disease, cholangiocarcinoma

5) Hemoptysis

Definition

1) Taenia solium (cysticercosis)

2) Echinococcus granulosus

3) Diphyllobothrium latum

4) Clonorchis sinensis

5) Paragonimus westermani

Term

Which parasite fits best with each finding?

6) Portal hypertension

7) Hematuria, bladder cancer

8) microcytic anemia

9) perianal pruritis

Definition

6) Schistosoma mansoni

7) Schistosoma haematobium

8) Ancylostoma, Necator

9) Enterobius

Term
What does the Reticular Activating System consist of?
Definition

Locus ceruleus (NE), raphe nucleus (serotonin), and reticular formation 

 

lesion of the Reticular Activating system causes coma

Term
Which nucleus in the hypothalamus synthesizes ADH?
Definition
Supraoptic nucleus
Term
Which nucleus in the hypothalamus makes oxytocin?
Definition
Paraventricular nucleus
Term
Which area of the hypothalamus causes savage behavior and obesity when it is stimulated?
Definition
lateral area
Term
Which area of the hypothalamus cause savage behavior and obesity when it is destroyed?
Definition
ventromedial area
Term
Stimulation of this area of the hypothalamus leads to eating and destruction leads to starvation.
Definition
lateral area
Term
Destruction of this area of the hypothalamus results in hyperthermia
Definition

anterior hypothalamus 

 

Anterior region usually functions to cool off (cooling, parasympathetic) (A/C - anterior cooling)

Term
Which nucleus in the hypothalamus releases hormones that affect the anterior pituitary?
Definition
Arcuate nucleus
Term
Which nucleus of the hypothalamus is responsible for circadian rhythm?
Definition
Suprachiasmatic nucleus
Term
What is the key neurotransmitter released and where is it released from to initiate sleep?
Definition
seratonin, released from the raphe nucleus
Term
What is a drug used to treat enuresis and which stage of sleep does it decrease?
Definition
imipramine (a tricyclic antidepressant), decreases stage 3 sleep
Term
What is the primary neurotransmitter in REM sleep?
Definition
Ach
Term
Activity of what caues extraocular movements during REM sleep?
Definition

paramedian pontine reticular formation/conjugate gaze center (PPRF)

 

PPRF is also responsible for rapid eye movements in nystagmus as well

Term

What are the afferent and efferent branches of the following cranial nerve reflexes?

 

1) Corneal

2) Lacrimation

3) Jaw Jerk (normally is absent)

4) Pupillary

5) Gag

Definition

1) V1, VII (temporal branch: orbicularis oculi)

 

2) V1, VII

 

3) V3,  V3 (motor-masseter)

 

4) II , III

 

5) IX , IX and X

Term

What are the main classes of drugs that are known to have anticholinergic side effects (besides the anticholinergics themselves)?

 

Definition
Tricyclic Antidepressants, First gen. H1 blockers like diphenhydramine, traditional neuroleptics like haloperidol, Amantadine 
Term
In which patients would you NOT want to give atropine?
Definition
BPH patients, dementia/delirium/elderly, hyperthermia, ileus or GI obstruction
Term
What are the clinical uses for Somatostatin (octreotide)?
Definition
acromegaly and other pituitary excesses, GI endocrine excesses (like carcinoid syndrome, VIPoma, glucagonoma, insulinoma, ZE syndrome), certain diarrheal diseases to shut down GI tract, and if you need to reduce splanchnic circulation (like in portal HTN-bleeding varices, bleeding peptic ulcers) 
Term
What are the 4 things psammoma bodies are seen in?
Definition

PSMM

 

Papillary carcinoma of thyroid, serous cystadenocarcinoma of ovary, meningioma, malignant mesothelioma

Term
What are some drugs that can increase seizure activity as a side effect?
Definition
Metaclopramide, bupropion, tramadol, enflurane, evening primrose oil
Term
What are the Killed Viral Vaccines?
Definition

RIP Always

 


R
abies, Influenza, Salk Polio (SalK=Killed), and HAV

Term
What are the live attenuated viral vaccines?
Definition

Smallpox, Yellow fever, chicken pox (VZV), Sabin's polio virus, MMR

 

Live! one night only! see small yellow chickens get vaccinated with Sabin's and MMR

Term

Autoantibody w/ associated disorder

 

1) Antinuclear antibodies

2) Anti dsDNA, anti-Smith

3) Anti-histone

4) Anti-IgG (rheumatoid factor) (IgM antibody against IgG)

5) Anticentromere

Definition

1) SLE, nonspecific

 

2) SLE (anti-smith is more specific for SLE renal disease)

 

3) Drug induced lupus (like with Hydralazine)

 

4) Rheumatoid Arthritis

 

5) Scleroderma (CREST)

Term

Autoantibody w/ associated disorder

 

1) Antimitochondrial 

2) Anti-Scl-70 (anti-DNA topoisomerase I)

3) anti-gliadin, antiendomysial

4) anti-basement membrane

5) Anti-desmoglein

Definition

1) primary biliary cirrhosis

 

2) Scleroderma (diffuse) 

 

3) celiac disease

 

4) Goodpasture's

 

5) Pemphigus vulgaris

Term

Autoantibody w/ associated disorder

 

1) antimicrosomal, antithyroglobulin

2) Anti-Jo-1

3) Anti-SS-A (anti-Ro)

4) Anti-SS-B (anti-La)

5) Anti-U1 RNP (ribonucleoprotein) 

Definition

1) hashimoto thyroiditis

 

2) Polymyositis, dermatomyositis

 

3) Sjogren's Syndrome

 

4) Sjogren's syndrome

 

5) Mixed connective tissue disorder 

Term
What type of hypersensitivity are autoantibodies associated with?
Definition
Type II hypersensitivity classically
Term

Autoantibodies w/ associated disorder

 

1) Anti-smooth muscle

2) Anti-glutamate decarboxylase (antiglutamic acid)

3) c-ANCA

4) p-ANCA

5) MPO-ANCA 

Definition

1) autoimmune hepatitis

 

2) Type I diabetes mellitis

 

3) Wegener's granulomatosis

 

4) microscopic polyangitis, Churg-Strauss

 

5) Pauci-immune crescentic glomerulonephritis 

Term
What initiates recombination of VDJ sequences?
Definition
RAG1, RAG2
Term
What is the mechanism of interferons?
Definition
induce the production of a ribonuclease that inhibits viral protein synthesis by degrading viral mRNA (but not host mRNA)
Term
What are the neutrophil chemotactic agents?
Definition
IL-8, C5a, Leukotriene B4
Term
Which cytokine do immunosuppressants most commonly affect?
Definition
IL-2 
Term
What are the main causes of eosinophilia (low eosinophils)?
Definition

NAACP D

 

Neoplastic

Asthma - includes Churg-Strauss

Allergic processes & acute interstitial nephritis

Collagen vascular diseases

Parasites (invasive)

Drugs

Term
What do the granules within basophils contain?
Definition

heparin (anticoagulant), histamine (vasodilator) and other vasoactive amines, and leukotrienes (LTD4) 

 

basophils are found in blood

Term
Which immunodeficiencies will show absence of thymic shadow?
Definition
Bruton's agammaglobulinemia, Thymic Aplasia (DiGeorge syndrome), SCID 
Term
What are the X-linked immunodeficiences?
Definition

WBC H

 

Wiscott-Aldrich

Bruton Agammaglobulinemia

Chronic Granulomatous disease

 

Hyper IgM syndrome (3 types: X-linked=no CD ligand, AR=noCD40, NEMO deficiency)

Term
What are the characteristics of Wiscott-Aldrich syndrome?
Definition

WAITER

 

Wiscott Aldrich

Immunodeficiency

Thrombocytopenia and purpura

Eczema

Recurrent pyogenic infections 

Term
What is the Presentation in Hyper-IgM syndrome (Job Syndrome)?
Definition

FATED

 

coarse Facies, cold (noninflamed) staphylocococcal Abscesses, retained primary Teeth (resulting in 2 rows of teeth), increased IgE, and Dermatologic problems (like eczema

Term
What is the presentation triad for Severe combined immunodeficiency (SCID)? 
Definition

1) Severe recurrent infections (chronic mucocutaneous Candidiasis, recurrent or fatal RSV, VZV, HSV, etc., PCP pneumonia)

2) chronic diarrhea

3) failure to thrive 

 

no thymic shadow as well 

Term
What is the defect/s in SCID?
Definition

defective IL-2 receptor (X-linked, most common)

 

adenosine deaminase deficiency

 

failure to synthesize MHC II antigens 

Term
What is the defect in Ataxia telangiectasia and what is the classic triad?
Definition

Defects in the ATM gene that codes for DNA repair enzymes

 

Triad: cerebellar defects (ataxia), spider angiomas (telangiectasia), IgA deficiency 

Term
What are the immunodeficiencies involved with phagocyte dysfunction?
Definition

Leukocyte adhesion deficiency type 1 (phagocytes can't enter tissue b/c defect in LFA-1 integrin on phagocytes)

 

Chediak-Higashi syndrome (microtubule dysfunction in phagolysosome fusion, defect in lysosomal regulator trafficking gene) 

 

Chronic granulomatous disease (lack of NADPH oxidase, decreased ROS and absent respiratory burst--- see a negative tetrazolium dye reduction test)

Term
Which tissues don't need insulin for glucose uptake?
Definition

BRICK L

Brain 

RBCs

Intestine

Cornea

Kidney

Liver

Term
Which things increase insulin and which things decrease insulin?
Definition

increase:  hyperglycemia, GH, cortisol, beta agonists

 

decrease: hypoglycemia, somatostatin, alpha agonists 

Term

Where are GLUT 1 receptors located?

 

What about GLUT 2?

 

GLUT 4?

Definition

GLUT 1: RBCs and brain

 

GLUT2 (bidirectional): beta islet cells, liver, kidney, small intestine 

 

GLUT 4 (insulin responsive): adipose tissue, skeletal muscle

Term
Which tissues don't have sorbitol dehydrogenase and thus can get osmotic damage in diabetes?
Definition

schwann cells, lens, retina and kidneys 

 

water comes in b/c sorbitol accumulation

Term

1) Where is iron absorbed in GI tract?

 

2) Where is folate absorbed in GI tract?

Definition

1) duodenum

 

2) jejunum

Term
What are the main Malabsorption syndromes?
Definition

These Will Cause Devastating Absorption Problems

 

Tropical sprue

Whipples disease

Celiac sprue 

Abeta-lipoproteinemia

Pancreatic insufficiency

Term
What are the manifestations of Whipple's Disease?
Definition

Foamy Whipped cream in a CAN


Foamy (PAS-positive) macrophages

Cardiac symptoms

Arthralgias

Neurologic symptoms 

 

Most commonly occurs in older men

Term
What is Abeta-lipoproteinemia and when does it manifest?
Definition

it is a dec. synthesis of apo B --> inability to generate chylomicrons --> dec. secretion of cholesterol, VLDL into bloodstream --> fat accumulation in enterocytes

 

presents in early childhood with malabsorption and neurologic manifestations 

Term
Wha is the primary disease assoc. w/ celiac sprue and what malignancy are you at risk for in the future with celiac sprue?
Definition

dermatitis herpetiformis

 

moderately inc. risk of T cell lymphoma

Term
Which autoantibodies do you see in celiac sprue?
Definition
antibodies to gliadin, tissue transglutaminase and endomysial antibodies 
Term
Which organs are involved in Vitamin B12 absorption and thus could cause problems if they are dysfunctional?
Definition
stomach (chief cells), duodenum, pancreas, distal ileum
Term
What are the 5 2's of Meckel's Diverticulum?
Definition

2 inches long, 2 feet from the ileocecal valve, 2% of the population, presents within first 2 years of life, and may have 2 types of epithelia (gastric/pancreatic) 

 

most common congenital anomaly of the GI tract

Term
What type of cells are in a carcinoid tumor and where are the common sites? 
Definition
tumor of neuroendocrine cells.  50% of small bowel tumors.  Most common sites are the appendix, ileum and rectum.
Term
What can a carcinoid tumor produce and what are the characteristics of the syndrome that occurs when this happens?
Definition

5-HT, leads to carcinoid syndrome if the tumor or metastasis exists outside of the GI tract (usually liver), carcinoid syndrome is observed.  

 

B FDR : Bronchospasm (causing wheezing), Flushing, Diarrhea, Rt. sided heart murmur 


Term
What are the common causes of bowel obstruction?
Definition

ABC:  adhesions, bulge (hernia), cancer/tumors

 

Other less common causes include volvulus, intussuscetion, Crohns, gallstone ileus, bezoar, bowel wall hematoma from trauma, inflammatory stricture, congenital malformation, radiation enteritis

Term

What are the Rate limiting enzymes for the following?

 

1) glycolysis

2) gluconeogenesis

3) TCA cycle

4) Glycogen synthesis

5) Glycogenolysis

6) HMP shunt (Pentose Phosphate)

Definition

1) phosphofructokinase 1

 

2) Fructose-1,6-bisphosphatase

 

3) isocitrate dehydrogenase

 

4) glycogen synthase

 

5) glycogen phosphorylase

 

6) Glucose-6-phosphate dehydrogenase

 

Term

What are the rate limiting enzymes for the following?

 

1) De novo pyrimidine synthesis

2) De novo purine synthesis

3) Urea cycle

4) Fatty acid synthesis

5) Fatty acid oxidation

6) Ketogenesis

7) Cholesterol synthesis

Definition

1) Carbamoyl phosphate synthetase II

2) Glutamine-PRPP amidotransferase

3) Carbamoyl phosphate syntetase I

4) Acetyl CoA carboxylase (ACC)

5) Carnitine acyltransferase I (carnitine shuttle)

6) HMG-CoA synthase

7) HMG-CoA reductase 

Term
Why are alanine and glutamine found in such high concentrations in the blood?
Definition

They are carriers of nitrogen from tissues into the urea cycle. 

Term
What is the purpose of a transamination reaction?
Definition

A transamination is the transfer of the amino group of an amino acid (like alanine) to alpha-ketoglutarate to form glutamate (glutamate can then transfer NH4+ into the urea cycle),  The remaining deaminated amino acid is a keto-acid (such as pyruvate) that is used in energy metabolism.

 

 

Term
In addition to substrates, what is required by all aminotransferases?
Definition

Pyridoxal phosphate (Vitamin B6 derivative).

 

 

Term
What are the 2 most important aminotransferases in the body, where are they located, and what reaction do they catalyze?
Definition

Alanine aminotransferase (ALT) and Aspartate Aminotransferase (AST) 

 

ALT converts alanine to pyruvate and in doing so converts alpha ketoglutarate to glutamate

 

AST converts oxaloacetate to aspartate and in doing so converts glutamate to alphaketoglutarate.

 

This is why you can have a urea cycle problem either by liver disease or by a deficieny in a urea cycle enzyme. 

Term
What are the possible products of pyruvate?
Definition
alanine, lactate, acetyl CoA, oxaloacetate (to continue the TCA cycle or to go into gluconeogenesis) 
Term
What happens in pyruvate dehydrogenase deficiency?  What is the treatment?
Definition

get backup of substrate (pyruvate and alanine) resulting in lactic acidosis.  

 

Findings: neurologic defects 

 

Tx: inc. intake of ketogenic nutrients (e.g. high fat content or inc. in lysine and leucine which are the only purely ketogenic amino acids) ... this helps to make acetyl CoA in a different way 

Term
What are some uncoupling agents and what effect do they have?
Definition

2,4-dinitrophenol (a wood preserving agent), aspirin, thermogenin in brown fat (used in hibernating animals)

 

inc. permeability of membrane causing a decrease in proton gradient and inc. oxygen consumption.  ATP synthesis stops, but electron transport continues. Produces heat (wasted energy). 

Term
What are the five categories of criteria for the diagnosis of metabolic syndrome?
Definition
abdominal girth, triglycerides, HDL, BP, Blood sugars
Term
Causes of Nutmeg Liver
Definition
Due to backup of blood into liver, commonly caused by right sided heart failure (would see JVD) and Budd Chiari syndrome (occlusion of IVC or hepatic veins - no JVD) 
Term
Reye Syndrome
Definition
childhood Hepatoencephalopathy
Term
What are some conditions associated with Budd-Chiari Syndrome?
Definition
hypercoagulability, pregnancy (from uterus pressing on IVC), hepatocellular carcinoma, polycythemia vera
Term
Which hepatitis viruses are fecal/oral transmission?
Definition

The Vowels hit your Bowels

 

HAV and HEV (naked viruses do not rely on an envelope so they are not destroyed by the gut

Term
Which hepatitis viruses can cause a chronic carrier state?
Definition
B and C
Term

What dare the characteristics of the disease caused by Leishmania donovani?

 

How is it transmitted?  What is the diagnosis and treatment?

Definition

Viceral leishmaniasis (kala-azar): spiking fevers, hepatosplenomegaly, pancytopenia

 

transmission by the sandfly (it is in the middle east-think lots of deserts);  diagnosis by macrophages containing "amastigotes" ; treatment is sodium stibogluconate

Term
Which antibodies can be used to help make the dx of autoimmune hepatitis?
Definition

postive serum ANA, + anti-smotth muscle, + anti/liver/kidney microsomal antibody

 

negative antimitochondrial and negative viral serology

Term
What is the classic triad of hemochromatosis?
Definition

micronodular cirrhosis, Diabetes mellitus and skin pigmentation --> "bronze diabetes"

results in CHF, testicular atrophy in males and inc. risk of HCC

 

Hemochromotosis Can Cause Deposits

Term
What is the treatment for hemochromatosis?
Definition
repeated phlebotomy, deferoxamine
Term
What are the 2 main risk factors for hepatic angiosarcoma?
Definition
vinyl chloride and arsenic
Term
What are the 3 main functions of bile?
Definition

1) digestion and absorption of lipids and fat-soluble vitamins

2) cholesterol excretion (body's only means of eliminating cholesterol)

3) Antimicrobial activity (via membrane disruption)

Term
What is Charcot's triad of cholangitis (biliary tree infection)?
Definition
Jaundice, Fever, RUQ pain
Term
What are the manifestations of Carnitine deficiency?
Definition
inability to transpotr LCFAs into the mitochondria, resulting in toxic accumulation.  Causes weakness, hypotonia, and hypoketotic hypoglycemia
Term
What is the result of an Acyl-CoA dehydrogenase deficiency?
Definition
increased dicarboxylic acids, increased glucose and ketones 
Term
What are the essential amino acids?
Definition

PVT TIM HALL

 

Phenylalanine, valine, threonine, tryptophan isoleucine, methionin, histidine, arginine, leucine, lysine

Term
Which of the essential amino acids are ketogenic only?
Definition
leucine, lysine 
Term
What are the Cytochrome P450 inhibitors?
Definition

PICK EGS

 

Protease inhibitors

Isoniazid

Cimetidine

Ketoconazole

Erythromycin

Grapefruit juice

Sulfonamides

Term
What are the Cytochrome P450 inducers?
Definition

BCG PQRS

 

Barbiturates

Carbamazepine

Griseofulvin

Phenytoin

Quinidine (can both induce and inhibit P450)

Rifampin

St. John's Wort

Term
What two important enzymes is Zinc needed for?
Definition
carbonic anhydrase and lactic dehydrogenase 
Term
What would you see clinically in a patient with a zinc deficiency?
Definition

rash around the eyes, mouth, nose, anus (Acrodermatitis enteropathica)

 

delayed wound healing, hypogonadism, decreased adult hair, dysgeusia, anosmia 

decreased mental function, impaired night vision, infertility,

Term
In what disease does vitamind D toxicity result from excess macrophage generation of 25-hydroxy-vitamin D?
Definition
Sarcoidosis
Term
What are the signs of Vitamin A deficiency?
Definition

Night blindness

 

Xerophthalmia (pahologi dryness of the conjunctiva and cornea) --> corneal ulceration and blindness


Keratomalacia (wrinkling, clouding of cornea)

 

Bitot's spots (dry, silver-gray plaques on the bulbar conjunctiva)

Term
Symptoms of Vitamin A toxicity
Definition

Headache, nausea/vomiting, stupor, skin (dry and pruritic) liver enlarged and possibly cirrhotic, bone and joint pain, increase in intracranial pressure (psuedotumor cerebri)

Term
What is another name for Vitamin E?
Definition
alpha-tocophorol 
Term
What is associated w/ vitamin E deficiency?
Definition

Spinocerebellar degeneration --> ataxia

 

Peripheral neuropathy and proximal muscle weakness 

 

increased fragility of erythrocytes (hemolytic anemia)

Term
Which Vitamins function similar to reduced glutathione?
Definition
Vitamin C, Vitamin E, and Vitamin A
Term
What results from an excess of folate and why?
Definition
B12 deficiency results b/c this vitamin is used in making tetrahydrofolate
Term
What are the 3 D's of Vitamin B3 (niacin) deficiency?
Definition

Pellagra 

 

Diarrhea, Dermatitis, Dementia

Term
What is the function of riboflavin?
Definition

It is a cofactor in oxidation/reduction reactions (e.g. FADH2) 

 

Deficiency causes Cheilosis and Corneal vascularization

Term
What nutrient deficiencies are associated w/ cheilosis, glossitis, and stomatitis?
Definition
iron, riboflavin, niacin, folate, and B12
Term
Which amino acid is required for the generation of niacin (B3)?
Definition
Tryptophan
Term
Which cytokines are released by virally infected cells?
Definition
IFN gamma and beta
Term
What are the GI abnormalities associated with Down Syndrome?
Definition

Duodenal atresia, hirschsprungs disease, celiac disease, annular pancreas

Term
What is the most abundant bacteria in the colon of most individuals?
Definition
Bacteroides fragilis
Term
Which colonic polyps are precancerous...Adenomatous or hyperplastic?
Definition
Adenomatous polyps are precancerous -- malignant risk is assoc. with increased size and increased villous histology 
Term
Which ALWAYS has rectal involvement... Crohns or UC?
Definition
ulcerative colitis
Term
What are the 4 A's of Klebsiella pneumonia?
Definition

Aspiration pneumonia

Abscess in lungs and liver

Alcoholics

di-A-betics

 

Red currant jelly sputum. 

Term
What are the urease-positive bugs?
Definition

PUNCH-K

 

Proteus, Ureaplasma, Nocardia, Cryptococcus, H.pylori, Klebsiella

Term
What drugs have photosensitivity reactions?
Definition

SAT for photos

 

Sulfonamides, amiodarone, tetracycline 

Term
What drugs should be avoid in patients with a sulfa allergy?
Definition

Popular FACTSSS

 

Probenecid, Furosemide, Acetazolamide, Celecoxib, Thiazides, Sulfonamide antibiotics, Sulfasalazine, Sulfonylureas

Term
What drugs can cause Stevens-Johnson Syndrome?
Definition

Penicillin

Seizure drugs: Ethosuximide, Carbamazepine,Lamitrigine, Phenytoin, Phenobarbital

Sulfa drugs

Allopurinol

Term
Which bacteria is a common antecedent to Guillain Barre syndrome?
Definition
Campylobacter jejuni
Term
With which bacteria should antibiotics be aboided b/c they may prlong the carrier state in GI tract infections?
Definition
Salmonella 
Term
Which bacteria is a common cause of osteomyelitis in sickle cell patients?
Definition
Salmonella
Term
Which GI bacteria is also associated with Reiter syndrome?
Definition
Shigella 
Term
What are some bugs that can mimic appendicitis?
Definition

Yersinia enterocolitica, Campylobacter jejuni, non-typhoidal Salmonella

 

mimic appendicitis by causing mesenteric adenitis 

Term
What are the Famous Fives of the Limbic System?
Definition
Feeding, Fleeing, Fighting, Feeling and sex
Term
Which regions of the brain are included in the limbic system?
Definition
cingulate gyrus, hippocampus, fornix, mamillary bodies, and septal nucleus
Term
What mutations are associated w/ a mutation of the K-RAS oncogene?
Definition
Kolon, panKreatic and lung
Term
What are the most common cancers associated w/ ionizing radiation?
Definition

Myeloid leukemia - ALL and CML

 

Thyroid

Term

Which neoplasm is associated with each of these conditions?

 

1) Down syndrome

2) Xeroderma pigmentosum, albinism

3) Chronic atrophic gastritis, pernicious anemia, postsurgical gastric remnants

4) Tuberous sclerosis (facial angiofibroma, seizures, mental retardation)

5) Actinic keratosis

Definition

1) ALL (we ALL fall down), AML

 

2) Melanoma, basal cell carcinoma, and especially squamous cell carcinomas of skin

 

3) gastric adenocarcinoma

 

4) cardiac rhabdomyoma, astrocytoma, angiomyolipoma

 

5) SCC of skin

Term

Which neoplasm is associated with each of these conditions?

 

1) Barrett's esophagus 

2) Plummer-Vinson syndrome

3) cirrhosis (alcoholi, hepatitis B or C)

4) ulcerative colitis

5) Paget's disease of bone

Definition

1) esophageal adenocarcinoma

 

2) SCC of esophagus

 

3) Hepatocellular carcinoma

 

4) colonic adenocarcinoma

 

5) secondary osteosarcoma and fibrosarcoma

Term

Which neoplasm is associated with the following condition?

 

1) Immunodeficiency states

2) AIDS

3) Autoimmune diseases

4) Acanthosis nigricans

5) dysplastic nevus

6) radiation exposure

7) Achalasia

8) Sjogren's

Definition

1) Malignant lymphomas

2) aggressive malignant lymphomas (non hodgkin's) and Kaposi sarcoma

3) lymphoma

4) visceral malignancy (stomach, lung, breast, uterus)

5) malignant melanoma

6) papillary thyroid cancer

7) SCC of esophagus

8) B cell lymphoma

Term
In which cancers do you see Psammoma bodies?
Definition

PSaMMoma

 

Papillary (thyroid), Serous (ovary), meningioma, mesothelioma

Term

Which structures perforate the diaphragm at the following levels?

 

1) T8

2) T10

3) T12

Definition

1) vena cava (8 letters)

 

2) o-esophagus (10 letters)

 

3) aortic hiatus (12 letters), azygos vein, thoracic duct

Term
Which muscles are responsible for inspiration and expiration during quiet breathing?
Definition

inspiration: diaphragm

 

expiration: passive

Term
What muscles are responsible for inspiration and expiration during exercise?
Definition

inspiration: external intercostals, Scalene muscles, Sternocleidomastoids

 

expiration: internal intercostals, rectus abdominis, internal and external obliques, transversus abdominis 

Term
Where in the each bronchopulmonary segment is the pulmonary artery and bronchial artery located in vs. the veins and lymphatics?
Definition

pulmonary artery and bronchial artery are located in the center 

 

veins and lymphatics drain along the edges 

Term
Where would you aspirate a peanut when standing up?  How about when supine?
Definition

while upright - lower portion of right inferior lobe

 

while supine - superior portion of right inferior lobe

Term
Where is the pulomary artery located in relation to the bronchus at each lung hilus?
Definition
RALS - Right side Anterior,  Left side Superior 
Term
How far down do the pseudostratified ciliated columnar cells extend?
Definition
they extend to the respiratory bronchioles (macrophages clear debris in alveoli)
Term
What are the 2 primary roles of type II pneumocytes?
Definition

secrete pulmonary surfactant (dipalmitoyl phosphatidylcholine) and serve as precursors to type I cells and other type II cells.   

 

type II cells proliferate during lung damage 

Term
What ratio of lecithin-to-sphingomyelin in the amniotic fluid indicates fetal lung maturity?
Definition
>2 
Term
How far down the respiratory tract do the goblet cells extend?
Definition
only to the bronchi
Term
What substances are known for causing methemoglobinemia?
Definition

Nitrites

antimalarial drugs

Dapsone

Sulfonamides

Metoclopramide (Reglan)

Nitrates

local anesthetics 

Term
What is the treatment for methemoglobinemia?
Definition
stop offending drug and give methylene blue
Term
What gene mutation can cause primary pulmonary HTN?
Definition
BMP2
Term
What are some of the treatment options available for Pulmonary HTN?
Definition
Bosentan, Sidenafil (PDE inhib), prostaglandin agonist, DHP CCB (nifedipine)
Term
What is the mechanism of action of Bosentan?
Definition
endothelin-1 receptor antagonist, resulting in decreased pulmonary vascular resistance 
Term

What is the V/Q at the apex of the lung?  

 

What is the V/Q at the base of the lung?

 

Definition

At the apex, V/Q is 3 

 

At the base, V/Q is 0.6

Term

What is V/Q during airway obstruction?

 

What is V/Q during blood flow obstruction?

Definition

V/Q appraches 0 during airway obstruction (shunt).  100% Oxygen will not improve PO2

 

V/Q approaches infinity in a blood flow obstruction (physiologic dead space).  100% Oxygen will improve PO2 assuming less than 100% dead space

Term
What are the main things that predispose to DVT?
Definition

Virchow's triad:

 

Stasis, hypercoagulability, and endothelial damage

Term
What is the differential diagnosis for eosinophilia?
Definition

DNAACP

 

Drugs

Neoplasm

Atopic Diseases (allergy, asthma, Churg Strauss)

Addison's Disease

Acute Interstitial nephritis

collagen vascular diseases

parasites (strongyloides, etc.) 

 

Term
What are the features of Sarcoidosis?
Definition

GRUELING

 

Granulomas, RA, Uveitis (eye), Erythema nodosum (tibial), lymphadenopathy (hilar, bilateral), idiopathic, not TB, gamma globulinemia, (ACE increase)

Term
Toxicity of which 3 drugs can cause restrictive lung disease?
Definition
bleomycin, busulfan, amiodarone
Term
Which patholgy do you find Psammoma bodies in?
Definition

PSaMM

 

papillary thyroid, serous cystadenoma, meningioma, mesothelioma

Term
What are some of the main complications of lung cancer?
Definition

SPHERE of complications

 

Superior vena cava syndrome

Pancoast tumor

Horner's Syndrome

Endocrine (paraneoplastic)

Recurrent laryngeal symptoms (hoarseness)

Effusions (pleural or pericardial)

Term
Where does lung cancer often metastasize to?
Definition
brain (epilepsy), bone (pathologic fracture), liver (jaundice,hepatosplenomegaly), and adrenals
Term
What syndrome does small cell carcinoma of lung sometimes lead to?
Definition

Lambert-Eaton syndrome (autoantibodies against calcium channels) - weakness improves with use (prime the muscles) 

 

 

Term
Which organisms can be picked up on a silver stain?
Definition
some fungi, Legionella pneumophila, pneumocystis jiroveci
Term
Which bugs do not gram stain well?
Definition

These Rascals May Microscopically Lack Color

 

Treponema (too thin to be visualized)

Rickettsia (intracellular parasite)

Mycobacteria (high lipid content cell wall, acid fast stain)

Mycoplasma (no cell wall)

Legionella pneumophila (primarily intracellular) 

Chlamydia (intracellular parasite; lacks muramic acid in cell wall) 

 

Term
Which bugs are identified using giemsa stain?
Definition
Borrelia, Plasmodium, trypanosomes, Chlamydia
Term
Which bugs are identified using PAS (periodic acid-Schiff)
Definition

PASs the sugar 

 

stains glycogen, mucopolysaccharides; used to diagnose Whipple's disease 

Term
Which bugs are identified using Ziehl-Neelsen (carbol fuchsin) stain?
Definition
Acid-fast organisms
Term
Which organisms are identified using India ink stain?
Definition

Cryptococcus neoformans (mucicarmine can also be used to stain thick polysaccharide capsule red)

 

 

Term
Which bacteria are encapsulated?
Definition

Some Killers Have Nice Shiny Bodies

 

Streptococcus pneumoniae, Haemophilus influenzae type B, Neisseria meningitidis, Salmonella, Klebsiella pneumoniae, group B Strep. 

Term
What 5 bacteria secrete enterotoxins (exotoxin that causes water and electrolyte imbalances of intestinal epithelium resulting in diarrhea)?
Definition
Vibrio, ETEC, Staph aureus, Salmonella, Shigella
Term
Which organisms are catalase positive?
Definition

you need SSPACE for your cat



S. aureus, Serratia, Pseudomonas, Actinomyces, Candida, E.Coli

Term
What are the pigment producing bacteria and what color pigments do they produce?
Definition

Actinomyces israelii -- yellow "sulfur" granules

 

S. aureus - yellow pigment

 

Pseudomonas aeruginosa - blue/green pigment

 

Serratia marcescens - red pigments

Term
Which organisms have an IgA protease as a virulence factor and why?
Definition

SHiN

 

S. pneumoniae, H. influenzae type B, and Neisseria.... in order to colonize respiratory mucosa

Term
What organisms most commonly are implicated in subacute endocarditis?
Definition

Strep. viridans (most common), also Enterococci, and Staph epidermidis

 

Strep. Bovis in colon cancer patients

Term
Which gram positve bacteria form spores?
Definition

found in soil: Bacillus antracis, Clostridium perfringens, C. tetani

 

Other spore formers:  B. cereus, C. botulinum, Coxiella burnetii 

Term
Which bacteria are obligate aerobes?
Definition

Nagging Pests Must Breathe

 

Nocardia, Pseudomonas aeruginosa, Mycobacterium tuberculosis, and Bacillus

 

 

Term

Which bacteria are obligate anaerobes?  

 

Which 2 main antibiotics cover for anerobes?

Definition

Anaerobes Can't Breath Air 

 

Clostridium, Bacteroides, and Actinomyces (these all lack catalase and/or SOD and are susceptible to oxidative damage) 

 

Metronidazole or Clindamycin

Term

Which 2 gram positive rods form long branching filaments that resemble fungi?

 

What drugs treat these 2?

 

Definition

Actinomyces israelii (an anaerobe) and Nocardia asteroides (an aerobe)

 

SNAP:  Sulfa for Nocardia... Actinomyces use Penicillin 

Term
What are the clincal uses for ampicillin and amoxicillin?
Definition
Neonatal infections and UTIs
Term
Name three penicillinase inhibitors that enhance the spectrum of penicillin drugs?
Definition
sulbactam, clavulanic acid, and tazobactam 
Term
What is the clinical use for Ticarcillin, carenicillin and piperacillin that is different than similar penicillin antibiotics?
Definition
Pseudomonas spp. and gram negative rods 
Term
What is unique about the clinical use for ampicllin and amoxicillin vs. some of the other penicillins?  
Definition

Extended coverage:  HEELPSS

 

treats the gram + as well as Haemophilus influenzae, E. coli, enterococci Listeria monocytogenes, Proteus mirabilis, Salmonella, Shigella

Term
Which penicillin drug would ou give for a neonatal infection?
Definition
Ampicillin w/ gentimicin
Term
Which hormones stimulate pancreatic secretion?
Definition
CCK, Secretin, Acetylcholine
Term
What are the first gen. cephalosporins?
Definition
cefazolin, cephalexin
Term
Which organisms are covered with first gen. cephalosporins and which clinical infections are treated?
Definition

gram postive cocci as well as PEcK.

 

Proteus, E.coli, Klebsiella pneumonia

 

treats UTIs, URT infection, viridans strep endocarditis prophylaxis 

Term
Which organisms are NOT covered by cephalosporins?
Definition

these organisms are LAME

 

Listeria, Atypicals (Chlamydia, Mycoplasma), MRSA, and Enterococci 

Term
What are the second generation cephalosporins and what are the clinical uses?
Definition

cefoxitin, cefaclor, cefuroxime 

 

gram + cocci plus HEN PEcKS

 

H. influenzae, Enterobacter, Neisseria spp., Proteus, E.coli, Klebsiella pneumonia, Serratia marcescens 

 

 

Term
What are the 3rd generation cephalosporins and what do they treat?
Definition

Ceftriaxone, Cefotaxime, ceftazidime,

 

treat serious gram negative infections resistant to other gram positive organisms

 

Ceftazidime - Pseudomonas 

Ceftriazone - meningitis and gonorrhea

 

 

Term
What is the main 4th generation cephalosporin and what does it treat?
Definition

Cefepime

 

Pseudomonas and gram positive organisms 

Term
What are the toxicities of cephalosporin class?
Definition
Vitamin K deficiency, Hypersensitivity, inc. nephrotoxicity of aminoglycosides, disulfiram-like reaction with ethanol (in some like cefamandole and cefotetan)
Term
Which substances can have a side-effect similar to disulfiram with alcohol consumption?
Definition
Metronidazole, some cephalosporins, procarbazine, 1st gen. sulfonylureas
Term
What is the mechanism and clinical use of aztreonam?
Definition

Mechanism is inhibition of cell wall synthesis (by binding PBP3).  Is synergistic w/ aminoglycosides and has no cross-allergenicity w/ penicillins

 

Clinical use is gram-negative rods only 

Term
Which drug is always given with imipenem?  
Definition

Cilastatin, which enhances imipenem by inhibiting renal dehydropeptidase I) to dec. inactivation of drug in renal tubules 

 

This is used as a big gun in ICU setting when most other drugs have failed.

Term
Which drugs are known for causing drug induced lupus?
Definition
Isoniazid, hydralazine, procainamide
Term
What are the R's of Rifampin?
Definition

RNA pol. inhibitor

Revs up microsomal P450

Red/orange body fluids

Rapid resistance if used alone 

Term
For what infections is rifampin used?
Definition

M. TB

Leprosy

minococcal prophylaxis

prophylaxis for H. influenzae type B 

Term
What is the mechanism of C. Botulinum toxin?
Definition
prevents Ach release 
Term
Which organisms are spirochetes?
Definition

BLT. B is Big 

 

Borrelia (big size), Leptospira, and Treonema

Term
What are the manifestations of Lyme Disease?
Definition

BAKE a Key LYME pie:  

 

Bell's palsy (bilateral), Arthritis, Kardiac block, erythema migrans

Term
What are some of the VDRL false positives?
Definition

VDRL:

 

Viruses (mono and hepatitis), Drugs, Rheumatic fever, lupus and leprosy 

Term

What is the disease associated with th following zoonotic bacteria and what is the transmission and source?

 

1) Bartonella spp.

2) Borrelia bugdorferi

3) Borrelia recurrentis 

4) Brucella spp.

5) Campylobacter

6) Chlamydophila psittaci

Definition

1) Cat scratch disease, cat scratch

 

2) Lyme disease, Ixodes ticks (live on deer and mice)

 

3) Recurrent fever, Louse (recurrent b/c of variable surface antigens)

 

4) Bucellosis/undulant fever, unpasteurized dairy

 

5) Bloody diarrhea, puppies and livestock (also fecal-oral, ingestion, sexual transmission)

 

6) Psittacosis, parrots and other birds

Term

What is the disease associated with th following zoonotic bacteria and what is the transmission and source?

 

1) Coxiella burnetii

2) Ehrlichiosis chaffeensis, 

3) Francisella tularensis

4) Leptospira spp.

5) Mycobacterium leprae

6) Pastuerella multocida 

Definition

1) Q fever, spores from tick feces and cattle placenta

 

2) Ehrlichiosis, lone star tick

 

3) Turaremia, ticks and rabbits and deer fly 

 

4) Leptospirosis, animal urine

 

5) Leprosy, armadillos

 

6) Cellulitis, osteomyelitis ; animal bite, cats, dogs 

Term

What is the disease associated with th following zoonotic bacteria and what is the transmission and source?

 

1) Rickettsia prowazekii 

2) Rickettsia rickettsii

3) Rickettsia typhus

4) Yersina pestis

Definition

1) Epidemic typhus, louse

 

2) Rocky Mountain spotted ever, dermacentor tick bite

 

3) Endemic typhus, fleas

 

4) Plague; flea bite and rodents and prairie dogs 

Term
With which Diseases are Palm and Sole rashes seen?
Definition

you drive CARS using your palms and soles. 

 

Coxsackievirus A infection (hand, foot, and mouth disease), Rocky Mountain spotted fever, syphillis

Term
What are the obligate intracellular bugs?
Definition
Rickettsia and Chlamydia (can't make their own ATP)
Term
Which bugs are facultative intracellular?
Definition

Some Nasty Bugs May Live FacultativeLY



Salmonella, Neisseria, Brucella, Mycobacterium, Listeria, Francisella, Legionella, Yersinia pestis 

Term
What is the classic rickettsial triad of features?
Definition
headache, rash, fever
Term

Which antibiotic should be used to treat the following?

 

1) Mycoplasma pneumoniae

2) RMSF

3) Early Lyme disease

4) Late Lyme disease 

5) Syphillis

6) Leprosy

7) Bacterial vaginosis

Definition

1) tetracycline or macrolides

 

2) doxycycline

 

3) doxycylcine

 

4) ceftriaxone

 

5) penicillin G

 

6) Dapsone, Rifampin , and Clofuzimine for 6-24 months

 

7) metronidazole 

Term
What adult structures are derived from the 3rd, 4th and 6th aortic arches?
Definition

3rd: common carotid and proximal part of internal carotid

 

4th: left-->aortic arch   ; right--> prox. part of subclavian

 

6th: left--> ductus arteriosus   ;  right--> prox. part of pulmonary arteries 

Term
What is some of the pathology that can result from problems with the truncus arteriosus (the aorticopulmonary septum separates)?
Definition
transposition of great vessels (failure to spiral), tetralogy of fallot (skewed AP septum development), persistent TA (partial AP septum development) 
Term
What are the 5 T's of Congenital Heart Disease (Right to left shunts causing early cyanosis) 
Definition

Tetralogy, Transposition, Truncus (persistent), Tricuspid atresia, TAPVR (total anomalous pulmonary venous return)

 

 

Term
What are the left to right shunts of congenital heart disease (causing late cyanosis - "blue kids")?
Definition
VSD > ASD> PDA
Term
What happens if you dont correct a VSD, ASD or PDA?
Definition
You get Eisenmenger's syndrome... compensatory pulmonary vascular hypertrophy results in pulmonary HTN and shunt reversal
Term
What is Ebsteins anomaly and what is it associated with?
Definition

Associated with maternal lithium use.

 

Tricuspid leaflets are displaced into right ventricle, hypoplastic right ventricle, tricuspid regurg or stenosis... results in dilated right atrium (which causes an inc. risk of supraventricular tachycardia and WPW)

 

80% of these patients have a patent foramen ovale

Term
What problems are offspring of diabetic mothers at higher risk for?
Definition
Transposition of the great vessels, hypoglycemia, large for gestational age
Term
What are the main 3 things that affect stroke volume?
Definition

SV CAP

 

Contractility, Afterload, and preload

Term
What are some common physiologic cases where SV is increased?
Definition
anxiety, exercise, and pregnancy
Term

What is preload?

 

What is afterload?

 

Definition

Preload = ventricular EDV, atrial pressure, or central venous pressure

 

Afterload= Mean arterial pressure (proportional to total peripheral resistance 

Term
Which vessels account for most of the total peripheral resistance?
Definition
arterioles (these regulate capillary flow)
Term
What does Pulmonary Capillary wedge pressure approximate?
Definition
left atrial pressure, measured with a Swan-Ganz catheter, typically <12
Term
What is the normal pressure in the left ventricle?  How about the right ventricle?
Definition

130/10 in left ventricle

 

25/5 in the right ventricle 

Term
What is the treatment for acute heart failure?
Definition

LMNOP

 

Loop diuretics, morphine, nitrates (dilates peripheral vasculature), oxygen, pressors (like dobutamine) and positioning (sit on edge of bed w/ legs down)

Term
What medications are used to treat chronic heart failure?
Definition

increase survival: ACE inhibitors, beta blockers, digoxin, spironolactone

 

Diuretics (no improved survival)

Term
In which disorders do you see an inc of capillary pressure leading to edema?
Definition
heart failure, also venous thrombosis locally, tumor, casting of a limb, restrictive clothing, etc.
Term
In which disorders do you see a dec. in plasma proteins (dec. colloid oncotic pressure) leading to edema?
Definition
nephrotic syndrome, liver failure, also protein malnutrition, small bowel protein loss 
Term
In which cases would you see increased capillary permeability (Kf) leading to edema?
Definition
toxins, infections, burns, septic shock (inc. histamine and bradykinin in septic shock)
Term
In which cases would you see an inc. interstitial fluid colloid osmotic pressure lead to edema?
Definition
lymphatic blockage
Term
What is the difference between pitting and non pitting edema in terms of the protein content of the fluid?
Definition

pitting edema is mostly water (due to inc capillary pressure like in heart failure)

 

non-pitting edema is a lot of colloid in interstitial fluid (jello-like) - exudate (due to inc. capillary permeability or inc. colloid oncotic pressure in the interstitium) 

Term
What serum marker is helpful in assessing the appropriate oxygenation of tissues?
Definition
lactic acid
Term
When does splitting of S2 normally occur?
Definition

normal splitting occurs durign inspiration (aortic valve closes before the pulmonic) 

 

a split S2 during expiration is NEVER normal 

Term
What heart sounds are considered benign when there is no evidence of disease?
Definition
Split S1, Split S2 on inspiration, S3 heart sound in patients <40, early quiet systolic murmur
Term
What are the most common causes of aortic stenosis?
Definition
congenital bicuspid valve, senile/degenerative calcification, rheumatic heart disease, unicuspid valve, syphillis
Term
Which phase in the pacemaker action potential determines the heart rate?
Definition

phase 4 in the SA node.  beta blockers dec. the heart rate

 

Sodium funny channels work here  

Term
Which phase of the cardiac action potential (cardiac muscle) do the Na channel blockers work (Class I antiarhythmics?) 
Definition
Phase 0 
Term
What are the main toxicities for quinidine?
Definition
cinchonism and torsade de pointes 
Term
What is the main drug used to treat Wolff-Parkinson White?
Definition
Procainamide (a class IA antiarrhythmic). Amiodarone (class III agent) is also used
Term
Which of the class I agents do you NOT want to give post MI and which do you want to give post MI?
Definition

Class IC is contraindicated for post-MI

 

Class IB is Best for post-MI

Term
What is the mechanism of adenosine?
Definition
increase K+ out of cells hyperpolarizing the cell and decreases the Calcium influx.  It is the drug of choice in diagnosing/abolishing supraventricular tachycardia.  Is very short acting and basically stops your heart.  extreme chest pain during those 15 seconds. 
Term
What is magnesium sulfate used for in cardiology?
Definition
effective in torsade de pointes and digoxin toxicity
Term
Low levels of which 2 ions in particular tend to predispose to arrhythmias?
Definition
hypokalemia and hypomagnesemia
Term
What is the length of a normal PR interval?
Definition
less than 200ms (0.2sec) - one large box (b/c each tiny box = 0.04sec) 
Term
What is the normal length of a QRS complex?
Definition
<120ms (.12sec) = 3 tiny  boxes 
Term
How do you know if a rhythm on ECG is supraventricular?
Definition

It will have a narrow QRS, meaning it has originated from the atria

 

if you have a long QRS, it has probably originated from the ventricle itself 

Term
Which disease caused by a tick bite can cause 3rd degree (complete) heart block?
Definition
Lyme Disease (Borrelia burgdorferi) 
Term

Which drugs from the following classes are known to prolong the QT interval (thus predisposing to torsade de pointes)?

 

1) Anti-infection: 

2) Anti-psychotics

3) Anti-HIV

4) Anti-Arrhythmic

Definition

1) macrolides, chloroquine

 

2) haloperidol, risperidone

 

3) HIV protease inhibitors (-navirs)

 

4) class IA (quinidine), class III (K+ channel blockers such as sotalol, amiodarone, bretylium) 

Term
What is the mechanism of minoxidil?
Definition
opens potassium channels and hyperpolarizes smooth muscle, resulting in relaxation of vascular smooth muscle 
Term
What are the deadly causes of acute chest pain that you should always rule out?
Definition
aortic dissection (or dissecting aortic aneurysm), unstable angina, MI, tension pneumothorax, PE
Term
What are some of the ECG changes seen in acute MI?
Definition
ST segment elevation of at least 1mm in 2 contiguous leads, T wave inversion, new LBBB, new Q waves (at least 1 block wide or 1/3 height of the total QRS complex) 
Term
What is the initial treatment protocol for MI?
Definition

MONA

 

morphine, oxygen, nitrates (dec. preload), aspirin

Term
Which of the cardiomyopathies is most common?
Definition
Dilated Cardiomyopathy
Term
What are some etiologies of dilated (congestive) cardiomyopathy?
Definition

ABCCCD

 

Alcohol abuse, Beriberi (wet), Coxsackie B vrus myocarditis, chronc Cocaine use, Chagas disease, Doxorubicin toxicity.  Also hemochromatosis, and peripartum cardiomyopathy, CHF

 

systolic disfunction is seen

Term
What type of hypertrophy do you see in dilated cardiomyopathy?
Definition
eccentric hypertrophy (sarcomeres added in series) 
Term
What type of hypertrophy do you see in hypertrophic cardiomyopathy?
Definition

concentric hypertrophy (sarcomeres added in parallel) -- tangled, disarray of myocytes 

 

see diastolic dysfunction

Term
Does valsalva maneuver make hypertrophic cardiomyopathy murmur louder or softer?
Definition
It makes it louder (this is different than what valsalva does to most murmurs) 
Term
What are the causes of restrictive/obliterative cardiomyopathy?
Definition
sarcoidosis, amyloidosis, postradiation fibrosis, endocardial fibroelastosis (thick fibroelastic tissue in endocardium of young children), Loffler's syndrome (endomyocardial fibrosis w/ a prominent eosinophilic infiltrate) and hemochromatosis 
Term
What are the signs and symptoms of bacterial endocarditis?
Definition

FROM JANE

 

Fever

Roth Spots (on retina)

Osler's nodes (tender raised lesions on finger or toe pads)

Murmur (new)

Janeway lesions (small erythematous lesions on palm or sole)

anemia

nailbed hemorrhage

emboli 

Term
What are the signs and symptoms of Rheumatic Fever?
Definition

FEVERSS

 

Fever

Erythema marginatum

Valvular damage (vegetation and fibrosis)

ESR elevated

Red-hot joints (migratory polyarthritis)

Subcutaneous nodules

St. Vitus dance (chorea) 

Term
What are the Jones (Diagnostic) Criteria for Rheumatic Fever?
Definition

Major criteria: JONES

Joints (migratory polyarthritis), Heart (O is a heart) pancarditis, Nodules (subcutanous aschoff nodules), Erythema marginatum (creeping skin rash), Syndenham chorea

Term
What is Kussmaul's Sign vs. Pulsus paradoxus?
Definition

Kussmaul's sign is JVD with inspiration (rt. sided heart failure) 

 

Pulsus paradoxus is decreased SBP by more than 20 mmHG w/ inspiration

Term
Which disease do you see more with Kussmaul's sign...constrictive pericarditis or cardiac tamponade?
Definition
constrictive pericarditis
Term
Which disease do you see more often with pulsus paradoxus... constrictive pericarditis or cardiac tamponade?
Definition
cardiac tamponade 
Term
What is the most common primary heart tumor in an adult and in a child?
Definition

adult: left atrial myxoma

 

child:  rhabdomyomas (assoc. w/ tuberous sclerosis)

 

 

Term
What is the most common cardiac tumor overall?
Definition
metastases (from melanoma and lymphoma commonly)
Term
Under what circumstances might you see pulsus paradoxus (dec. SBP by more than 10 mmHg with inspiration)?
Definition
cardiac tamponade, asthma, obstructive sleep apnea
Term
What diseases might have Bell's palsy as a complication?
Definition

My Lovely Belle Had An STD



Lyme Disease, Herpes zoster, AIDS, sarcoidosis, Tumors, Diabetes

Term

How do symptoms of a lesion to the cortical motor region of the face differ from a lesion of the facial nerve or nucleus?

 

Definition

Lesion in cortical motor face region --> paralysis of contralateral side of lower face

 

Lesion of facial nerve or nucleus --> paralysis or ipsilateral side of entire face

Term
What is the hallmark sign of a general brainstem lesion?
Definition
Alternating syndromes: with long tract symptoms on one side (i.e., hemiparalysis) and cranial nerve symptoms on the other
Term
What causes and what are the symptoms of Weber syndrome? 
Definition

Midbrain infarction resulting from occlusion of the paramedian branches of the PCA. 

 

Cerebral peduncle lesion--> contralateral spastic paralysis

Oculomotor nerve palsy --> ipsilateral ptosis, pupillary dilation, and lateral strabismus (eye looks down and out) 

Term
What are the causes and what are the symptoms of lateral medullary syndrome (Wallenberg syndrome)? 
Definition

Caused by occlusion of one of the PICAs causing unilateral infarct of lateral portion of rostral medulla.

 

Loss of PT over contralateral body (Spinothalamic tract damage)

Loss of PT over ipsilateral face (trigeminothalamic tract damage)

Hoarseness, difficulty swallowing, loss of gag reflex ( nucleus ambiguus: CN IX and X damage)

Ipsilateral Horner syndrome (descending sympathetic tract) 

Vertigo, nystagmus, nausea/vomiting (vestibular nuclei damage)

Ipsilateral cerebellar deficits (i.e. ataxia, past pointing) due to inferior cereellar peduncle damage

Term
A lesion of what artery can cause "locked-in syndrome"?
Definition
Basilar artery (which supplies the superior pons) 
Term
What is the most common site of a berry aneurysm and what diseases are often associated w/ berry aneurysms?
Definition

Anterior communicating arteries

 

PCKD, Marfans, HTN, Ehlers Danlos 

Term
What is the clinical triad seen in normal pressure hydrocephalus?
Definition
Wet (urinary incontinence), wobbly (ataxia), and wacky (dementia) 
Term
What is the problem in communicating hydrocephalus?
Definition
dec. CSF absorption by arachnoid villi, which can lead to inc. intracranaial pressure, papilledema, and herniation
Term
What is the problem in a noncommunicating hydrocephalus?
Definition
structural blockage of CSF circulation w/in the ventricular system
Term
What are the treatments for overdose of heparin and warfarin?
Definition

protamine sulfate for heparin overdose 

 

Fresh frozen plasma for fast treatment of warfarin overdose, vitamin K for slow treatment of warfarin overdose

Term
What are the five hereditary thrombosis syndromes?
Definition
factor V leiden, Proten C deficiency, Protein S deficiency, Antithrombin deficiency, Prothrombin gene mutation
Term
What are the longitudinal zones of the cerebellum starting with thte most medial? 
Definition

Vermis, intermediate (paravermal) zones (right and left), and lateral hemispheres (right and left) 

 

Term
Describe the general flow of information through the cerebellum?
Definition
Inputs (mossy and climbing fibers) --> cerebellar cortex --> purkinje fiber --> deep nuclei of verebellum --> output targets 
Term
What structure provides the major output pathway from the cerebellum?
Definition
Bachium conjunctivum (AKA superior cerebellar peduncle) --> contraleteral VL of thalamus 
Term

Based on the primary source of information brought into the cerebellar cx, which cerebellar regions are referred to as the vestibulocerebellum, spinocerebellum, and cerebrocerebellum? (To which deep nuclei do these regions project?)

 

Definition

Vestibulocerebellum -- Flocculonodular lobe and vermis (--->fastigial)

 

Spinocerebellum -- Vermis and paravermal regions (-->fastigial and interposed) 

 

Cerebrocerebellum -- lateral hemispheres (--> dentate) 

 

 

Term
Motor control on which side of the body would be affected with a lesion on one side of the cerebellar hemisphere?
Definition
Motor control ipsilateral to the side of the lesion would be affected (because the crebellum goes to the contralateral thalamus which goes to the cortex and then the corticospinal tract and finally to the body contralateral to the cortex) 
Term
Which neurological abnormalities can be attributed to damage of the spinocerebellum (vermis and paravermis)?
Definition
this is more of the central area... postural instability, slurred/slowing of speech, hypotonia, and pendular knee jerk reflexes 
Term
What symtpoms are seen in anterior lobe(anterior vermis) syndrome?  What is the most common cause?
Definition

The most anterior portion of the vermis belongs to the legs.

 

Ataxia/dystaxia of legs (even when the trunk is supported) causing broad based staggering gait.

 

Chronic alcohol abuse --> thiamine deficiency-0> degeneration of cerebellar cx (starting at the anterior lobe)

Term
What neurological deficits can be attributed to damage of the cerebrocerebellum (lateral hemisphere)?
Definition

lack of coordination of volunatary mvmt with respect to both the timing and rate of the movement.

 

delays in initiating mvmts and trouble stopping movmvnets

 

dysmetria (imparied ability to control the distance, speed, and power of movement)

 

Intention tremor 

Term
What neurological deficits can be attributed to damage of the vestibulocerebellum (vermis and flocculonodular)? 
Definition

Disequilibrium: difficulty in maintaining balance

 

Abnormal eye movements 

Term
What is the most common cause of damage to the flocculonodular lobe?
Definition
Medulloblastoma in childhood 
Term
What excitatory neurotransmitter is involved in pain?
Definition
substance P
Term
Does the thalamus stimulate or inhibit the motor cortex?
Definition
stimulates
Term
Does the subthalamic nucleus ultimately stimulate or inhibit movement?
Definition
it inhibits movement by activating the globus pallidus internal (which is a movement inhibitor by inhibiting the thalamus)
Term
Does the substantia nigra pars compacta stimulate or inhibit movement?
Definition
it stimulates movement (this is why with a nonfunctional one you get paucity of movement... as seen in Parkinsons)
Term
What happens to movement if you lesion the subthalamic nucleus?
Definition
contralateral hemiballismus 
Term
What are the C's of Huntington's Disease?
Definition
CAG repeats, Chorea, Chromosome 4, crazy (dementia), caudate atrophy 
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