Test 64

Question 1

recognize and kill cells w/ DECREASED MHC class I Ag (virus/tumor infected cells)

Answer 1

NK cells

Question 2

part of the heart that is adjacent to the esophagus

Answer 2

left atrium

*enlargement can compress esophagus and cause dysphagia

Question 3

lies posterior to esophagus and LA

w/ TEE can dectect dissection/aneurysm

Answer 3

descending htoracic aorta

Question 4

JVP tracing wave that is noticable in pts w/ afib

Answer 4

A wave (right atrial contraction)

Question 5

calcification/thickening of pericardium > 4 mm

slowly progressive dyspnea
peripheral edema
ascites

Answer 5

constrictive pericarditis on CT

Question 6

increases pancreatic bicarb secretion (CL content decreases in proportion to rise in bicarb)

Answer 6

Secretin (duodenal S cells) secrete secretein in response to RISE in H

Question 7

RBF

Answer 7

RBF= (PAH clearance / (1-hematocrit))

Question 8

EHEC

Answer 8

inadquately cooked hamburger meat> hemorrhagic colitis

like SHIGA toxin> inactivates 60S ribosomal subunit> inhibition of protein synthesis and eventual cell daeth

Question 9

causes 80% of HUS in N.A.

Answer 9

EHEC

Question 10

produce toxins that activated adenylate cyclase

Answer 10

B pertussis
B. anthracis
ETEC
Campylobacter
Bacillus
V. cholerae

Question 11

produces toxins that activate G. cyclase

Answer 11

ETEC

yersinia

Question 12

compensatory response to low Hb, thrombocytopenia, absent hematopoietic cells in BM

Answer 12

aplastic anemia

EPO

Question 13

Bioavailability

Answer 13

fraction of administered drug that reaches SYSTEMIC circulation

F= AUC oral dose X dose IV/ (AUC IVx odose oral)

Question 14

stimulate follicular epidermal hyperproliferation and excessive sebum production and promote acne development in competitive atheletes

Answer 14

androgens

Question 15

unilateral facial paralysis
decreased tearing
hyperascusis
lose of TASTE sensation over anterior 2/3 of tongue

Answer 15

Bells palsy

Question 16

idiopathic paresis of facial nerve

1. unilateral facial paralysis
2. PNS innervation to SGlands
3. AFF to TASTE of ant 2/3 of tongue
4. aff to pinna /external auditory canal

Answer 16

Bells Palsy

Question 17

inerruption of SNS innervation

ptosis
miosis
anyhydrosis
enopthalmos

Answer 17

horners syndrome

Question 18

MC primary brain tumor in adults

Answer 18

GBM

Question 19

GBM histological findings

Answer 19

area of necrosis and hemorrhage

pseudopalisading tumor cells

Question 20

incidence

Answer 20

new cases dx in given period of time

Question 21

prevalence

Answer 21

total cases at a particular point in time

Question 22

thickening and velvety hyperpigmentation of skin in flexural areas

Answer 22

insulin resistant steas

gastrointestinal malignancies

Question 23

B blockers PREFERRED in pts w/ COPD/asthma

Answer 23

metoprolol
atenolol
acebutolol
esmolol

you MAAE prefer to use these for asthma

Question 24

isoproterenol

Answer 24

adrenergic agonist that STIMULATES B1 and B2

bronchodilation, increases HR and CO, decreases PAR

NOT used during acute MI

Question 25

required for viridans to cause subacute bacterial endocarditis

Answer 25

preexisting valve damage that leads to local deposition of FIBRIN that is required for them to adhere