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4/1/12
1 test
33
Science
Not Applicable
04/02/2012

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Term
Impaired development of posterior fossa manifesting as headaches & ataxia in adulthood
Definition
Arnold Chiari type 1 (may be totally asymptomatic

(AC2 is manifest in infancy & is always associated w/ meningomyelocele)
Term
How do you kill picornaviruses?
Definition
boil for 1 minute

(note: 20% diethyl ether is used to inactivate encapsulated viruses)
Term
this may develop & acutely exacerbate left heart failure (manifest as pulmonary edema & hypotension) in a patient w/ aortic stenosis
Definition
Atrial fibrillation:

- They are at risk to begin with
- The atrial kick is needed to maintain output to a hypertrophied, non-compliant heart
- loss of kick = decreased preload & increased pulmonary wedge pressure
Term
Chlordiazepoxide MOA
Definition
long acting benzo
Term
treatment of acute manic episode?
Definition
mood stabilizing agent (valproate, carbamazepine, lithium) plus an atypical antipsychotic (e.g. olanzapine)
Term
What damages muscle in polymyositis?
Definition
CD8+ mediated skeletal muscle damage
Term
what is the point of matching in case-control studies (e.g. use neighbor of person who is affected by disease as a control)
Definition
this eliminates confounding variables (e.g. socioeconomic status, smoking) from the analysis

this, however, may introduce selection bias (controls are not representative of population as whole)
Term
[image]
Definition
(a) Pudendal nerve, (b) inferior cluneal nerve, (c) obturator nerve, and (d) genitofemoral and ilioinguinal nerves
Term
location of peptostretococci & fusobacteria
Definition
oropharynx (if aspirated, can cause lung abscesses)
Term
What's the major effector cell in contact dermatitis (e.g. poison oak)?
Definition
CD8+ T-cells (haptenization --> langerhan's cells migrate to lymph --> activate CD4+ cells --> activate CD8+ cells --> migrate back to skin)
Term
what direction does kinesin travel? dynein?
Definition
Kinesin: fast anterograde transport (200-400mm/day)

Dynein: fast retrograde transport (100-200mm/day)
Term
All of these things cause what?
- renovascular HTN (e.g. fibromuscular dysplasia, renal artery atherosclerosis)
- diuretic use
- malignant HTN
- renin-secreting tumors
Definition
secondary hyperaldosteronism (high renin & aldosterone)
Term
What part of the breath is pulmonary vascular resistance the lowest?
Definition
functional residual capacity (i.e. the resting state of lung before you take a normal breath)
Term
flushing, pruritis, increased gastric acid secretion, syncope (hypotension), tachycardia, and bronchospasm triggered by certain foods, temperature changes, alcohol, drugs (e.g. morphene, codeine, aspirin)
Definition
systemic mastocytosis (too many mast cells in tissues
Term
act directly on PPAR-gamma

name some actions of PPAR-gamma
Definition
- thiazolidinediones --> SE include fluid retention, and thus, they are contraindicated in CHF

- increases adiponectin (adiponectin acts to increase fatty acid oxidation in liver & muscle --> decrease FFA-mediated insulin resistance)
- increases fatty-acid transport protein: deposition of FFA deposition in adipocytes instead of liver/muscle (thus increase insulin sensitivity in the latter 2 tissues)
- increase insulin receptor
- increase GLUT-4 transporter
Term
add to chloroquine to prevent relapse w/ P.vivax & P.ovale
Definition
primaquine (eliminate hypnozoites in liver)
Term
cystathionine beta-synthase deficiency
Definition
classic homocystinuria
(ectopic lense, mental retardatino, marfanoid habitus, osteoporosis, & vascular problems)
Term
pleiotropy definition?
Definition
multiple phenotypic manifestations result from a single genetic mutation
Term
pathophysiology of hereditary angioedema
Definition
C1 inhibitor deficiency --> inappropriate activation of complement system --> activation of kininogen system --> accumulation of bradykinin --> edema
Term
[image]
Definition
Term
how is digoxin cleared?
Definition
renal (2/3 excreted unaltered)

p450 inducers will increase elimination, b.c. it increases hepatic metabolism. Although the majority of DIG is renally excreted, things like rifampin & phenytoin can increase the clearance

NOTE: digoxin has a wide volume of distribution (& thus long 1/2 life). The primary tissue storage site is the skeletal muscle, not adipose
Term
DOC for preventing mother-fetus HIV transmission
Definition
zidovudine (ZDV, an NRTI)
Term
acrolein is secreted, causing damage to the bladder with the use of this drug.

What is the treatment for this damage?
Definition
- cyclophosphamide

- mesna (sulfhydryl compound that binds acrolein in urine)
Term
this cholesterol-lowering drug will increase triglycerides
Definition
bile-acid binding resins (cholestyramine, colestipol, colesevelam)

THINK: liver needs to synthesize more cholesterol, so it'll increase triglyceride synthesis. (I couldn't find it, but adipose probably mobilizes its TG too)
Term
2 amino acids needed for collagen? which one is most abundant?
Definition
glycine & proline (-Gly-X-Y-)333

glycine (proline is essential for the protein as a whole, but not essential for each triple repeat where glycine is)
Term
subluxation of radius may damage which nerve derived from brachial plexus?
Definition
deep branch of radial nerve --> supplies extensor compartment of forearm (no sensory innervation); thus, you get wrist drop w/ no sensory deficits

the radial nerve branches at 2 points: the spiral groove of the humerus --> branches to posterior cutaneous nerve of forarm (sensory) & continues as radial nerve (motor) crossing into anterior compartment (lateral aspect) ;;;; branches near lateral epicondyle (where humerus articulates w/ radial head
Term
Tumors w/ Call-Exner bodies (small follicle-like structures filled w/ eosinophilic secretions) & precocious puberty/abnormal uterine bleeding/endometrial hypertrophy
Definition
granulosa cell tumors (secrete estrogen)

Call-Exner bodies are the tumor mass trying to do what normal ovarian stroma does = make space for the ovum
Term
Gottron papules
Definition
flat-topped violaceous papules present over the joints of the fingers. along w/ heliotrope rash, these are cutaneous manifestation of dermatomyositis
Term
systemic vasculitis consisting of necrotizing granulomatous inflammation w/ eosinophils & involving many organs (esp lung & heart)
adult-onset asthma, eosinophilia, mono- or polyneuropathy, migratory pulmonary infiltrates, paranasal sinus abnormalities, & p-ANCA positivity
Definition
Churg-Strauss syndrome
Term
mechanism of resistance to:
- aminoglycosides
- fluoroquinolones
- tetracyclines
Definition
- plasma-mediated group transferases (acetyl, adenyl, phosphate)

- mutations in topoisomerase

- mutation in ribosome or efflux pumps
Term
etiologies of minimal change disease?
Definition
- upper respiratory infections
- immunizations
- hypersensitivities (e.g. bee sting)
- Hodgkin lymphoma
- drugs (gold, lithium)
Term
etiologies of minimal change disease?
Definition
- upper respiratory infections
- immunizations
- hypersensitivities (e.g. bee sting)
- Hodgkin lymphoma
- drugs (gold, lithium)
Term
inheritance of:
- G6PD deficiency (remember Heinz bodies)
- Hereditary spherocytosis
Definition
- X-linked recessive
- AD (75% of cases; others are compound heterozygous)
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