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IM
UWORLD 4
65
Medical
Graduate
02/02/2014

Additional Medical Flashcards

 


 

Cards

Term
which is the encapsulated yeast?
Definition
cryptococcus
Term
treatment of cryptococcus
Definition
amphotericin plus flucytosine then if there is a + response do oral fluconazole
Term
itraconazole is used for?
Definition
moderate blastomyces in healthy individuals

maintenance therapy for histoplasma meningtits after initial tx with amphotericin
Term
what is sulfadiazine pyrimethamine used for
Definition
txoxplasmosis
Term
most common cause of acute back pain
Definition
lumbosacral strain
Term
tx of flash pulmonary edema
Definition
diuretic like furosemide
Term
what do you NOT use to treat MI if there is flash pulmonary edema?
Definition
NO BB
Term
test for mononucleosis

limitations of this test
Definition
heterophile antibody test

may be negative in the first week
Term
triad of mononucleosis
Definition
high fever, lymphadenopathy and pharyngitis
Term
what lymph nodes are mostly effected in mono
Definition
posterior cervical chain > anterior cervical chain
Term
treat neuroleptic malignant syndrome
Definition
dantrolene
Term
tx nocardia?
Definition
tmp-smx
Term
who gets nocardia?
Definition
often ppl on steroids long term or some other form of immunocomp
Term
what do leafy greens do to the effects of warfarin?

acetominophen?
Definition
decrease

increases (increased bleeding risk)
Term
what else increases the effects of warfarin?
Definition
other NSAIDS
thryoid hormone
PPI
amiodarone
antibiotics
Term
what besides vit K decreases the effects of warfarin
Definition
rifampin
carbamazepine
OCP
st johns wort
Term
which is used for smoking cessation buproprion or buspirone
Definition
bupropion
Term
after a pt gets a blood transfusion, if they have some adverse reaction, based on the timeline you can narrow your differential. How?
Definition
rxn in seconds or minutes = anaphylaxis
within 1 hour: acute hemolytic
1-6 hours: febrile nonhemolytic, TRALI
over 2 days: delayed hemolytic
Term
why would you irradiate RBCs before giving them to a patient
Definition
-if donated by 1st or 2nd degree relatives
-in BM transplant patients
-in acquired or cellular immunodeficiency
Term
Why would you luekoreduce RBCs before a transfusion
Definition
-if they are CMV seronegative and immunocompromised
-if they are chronically transfused patients
-if they are potential transplant recipients
-if they had a previous febrile nonhemolytic rxn
Term
when do you wash RBCs before a transfusion
Definition
-IgA def
-complement dependant autoimmune hemolytic anemia
-continued allergice rxn (hives) with transfusion even when you give antihistamine
Term
what exactly is a nonhemolyltic transfusion reaction?
Definition
-occurs in 1-6 hrs after transfusion
-from cytokines that still remain in the blood after plasma is removed
-causes fever, chills, malaise and NO HEMOLYSIS
Term
how do you manage nonhemolytic transfusion reaction
Definition
-stop transfusion
-give antipyretic
-use leukoreduced blood products next time
Term
TRALI
Definition
transfusion related acute lung injury
Term
features of TRALI
Definition
looks just like ARDS
-sudden development of dyspnea, hypoxemia and fever
-hypotension or hypertension
Term
management of TRALI
Definition
give O2 and aggresive respiratory support

give fluids or vasopressors if hypotensive

steroids
Term
TACO?
Definition
transfusion assocaited circulatory overload
Term
major features of TACO
Definition
dyspnea
orthopnea
peripheral edema
rapid increaes in bp
Term
management of TACO
Definition
give diuretic
Term
what causes acute hemolytic transfusion reaction
Definition
usually ABO incompatability
Term
What are the major microcytic anemias?
Definition
IDA
Thalassemia
Anemia of Chronic Disease
Term
MCV, Fe, TIBC, % Sat and ferritin levels in IDA
Definition
MCV lo
Fe lo
TIBC hi
% sat low
ferritin low
Term
MCV, Fe, TIBC, % Sat and ferritin levels in Thalassemia
Definition
MCV lo
Fe hi
TIBC lo
% sat hi
ferritin hi
Term
MCV, Fe, TIBC, % Sat and ferritin levels in anemia of chronic disease
Definition
MCV normal or lo
Fe lo
TIBC low
% sat normal or lo
ferritin normal or lo
Term
how do OCPs cause hypertension
Definition
estrogen may ingrease the synthesis of antiogensinogen in the liver and effect the RAAS system
Term
pneumonia culture that grows mucoid colonies that are capsulated
Definition
klebsiella pneumoniae
Term
what kind of kidney problem do elderly ppl in nursing homes have (hint they have poor oral intake). what is the pathogenesis of this problem?
Definition
prerenal azotemia

initial volume depletion results in vasoconstriction of efferent arterioles and vasodilatition of afferent. however further depletion results in big GFR decrease and decline in renal functino (hi Cr, hi BUN)
Term
BUN/Cr in prerenal vs renal azotemia
Definition
prerenal >20
renal <20
Term
ATN and Bun/Cr
Definition
if ATN is the result of hypoperfusion then initally there will be an elevated BUN/Cr. However once the ATN sets in and tubes are damaged they cant reabs urea so BUN/Cr drops
Term
emperic treatment of iv drug related endocarditis
Definition
vanco
Term
Ca, P, K, and uric acid in tumor lysis syndrome
Definition
Ca lo
P, K, Uric acid hi
Term
in a pt with tumor lysis syndrome you are owrried about the uric acid damaging kidneys, how do you prevent this?
Definition
allopurinol
Term
what types of cancer are at a higher risk of tumor lysis
Definition
poorly differentiated lymphomas and leukemias
Term
what metal is most likely to cause allergic rxn
Definition
nickel
Term
what is the algorithm for working up hypercalcemia?
Definition
1. measure PTH
2. Hi normal or Hi PTH =
primary/tertiary hyperparathyroidism, familial hypercalcemic hypocalciuria, lithium

3. If PTH is lo then measure PTHrP, and vit D. That should help elicit the cause.....
Term
What are the two most common causes of hypercalcemia
Definition
hypercalcemia of malignancy
primary hyperparathyroidism
Term
how does malignancy cause hypercalcemia
Definition
1. bone mets
2. secretion of PTHrP
3. increased vitD?
Term
CKD and Ca
Definition
CKD causes 2ndary hyperparathyroidism
INITIALLY
hi PTH
low/normal Ca
hi P
low 1,25 vitD

LATER
the patient may get parathyroid hyperplasia leading two tertiary hyperparthyroidism and so much PTH that Ca becomes elevated
Term
haptoglobin
Definition
serum protein binds free hemoglobin and promotes its exretion by RES
Term
what are haptoglobin levels in hemolytic anemia?
Definition
low
all the haptoglobin is being used to bind up free hemeglobin from the hemolysis
Term
treatment of flu pneumonia
Definition
oseltamivir
Term
what do steroids do the WBC count
Definition
increases neutrophil count
"mobilizes the marginated netrophil pool" and pushes wbcs out of bone marrow
Term
splinter hemorrhages under nail beds are seen in _____________
Definition
endocardities
Term
fever + chills + LUQ pain + splenic fluid collection =
Definition
splenic abscess
Term
what is a splenic abscess associated with in a non immmunocomp patient
Definition
endocarditis, IV drug abuse, trauma, hemoglobinopathies
Term
dome shaped lesions with central umbilication?
Definition
molluscum contagiosum cuased by poxvirus
Term
in a MI, what is the major factor that deterimines prognosis during the acute event?
Definition
how long it takes to restore coronary blood flow
Term
tx of opioid OD
Definition
naloxone
Term
signs of opioid OD
Definition
pinpoint pupils
lethargy
dec bowel sounds
DECREASED resipratory rate
Term
how do you manage a pt with DVT and elevated homocysteine
Definition
give pyridoxine
Term
major features of tinea corporis
Definition
ring shaped scaly pathces with central clearing and distinct borders
very itche
KOH yields hyphae
Term
treatment of tinea corporis
Definition
lotion like terbinafine
if super severe: griseofulvin
Term
tx of severe alcoholic cirrhosis with edema, ascites and esophageal varicies (non bleeding)
Definition
BB
Term
clinical features of glucagonoma
Definition
necrolytic migratory erythema (erythematous papules/plaques on face perineum and extremities that enlarge and coalexce with centreal clearing and peripheral crusting)

DM

GI: diarrhea, anorexia, abdo pain
Term
lab dx of glucagonoma
Definition
hyperglycemia

glucagon > 500
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