Test 64 Flashcards

(25 cards)

1
Q

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

A

NK cells

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2
Q

part of the heart that is adjacent to the esophagus

A

left atrium

*enlargement can compress esophagus and cause dysphagia

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3
Q

lies posterior to esophagus and LA

w/ TEE can dectect dissection/aneurysm

A

descending htoracic aorta

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4
Q

JVP tracing wave that is noticable in pts w/ afib

A

A wave (right atrial contraction)

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5
Q

calcification/thickening of pericardium > 4 mm

slowly progressive dyspnea
peripheral edema
ascites

A

constrictive pericarditis on CT

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6
Q

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

A

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

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7
Q

RBF

A

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

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8
Q

EHEC

A

inadquately cooked hamburger meat> hemorrhagic colitis

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

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9
Q

causes 80% of HUS in N.A.

A

EHEC

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10
Q

produce toxins that activated adenylate cyclase

A
B pertussis
B. anthracis
ETEC
Campylobacter
Bacillus
V. cholerae
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11
Q

produces toxins that activate G. cyclase

A

ETEC

yersinia

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12
Q

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

A

aplastic anemia

EPO

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13
Q

Bioavailability

A

fraction of administered drug that reaches SYSTEMIC circulation

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

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14
Q

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

A

androgens

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15
Q

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

A

Bells palsy

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16
Q

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
17
Q

inerruption of SNS innervation

ptosis
miosis
anyhydrosis
enopthalmos

A

horners syndrome

18
Q

MC primary brain tumor in adults

19
Q

GBM histological findings

A

area of necrosis and hemorrhage

pseudopalisading tumor cells

20
Q

incidence

A

new cases dx in given period of time

21
Q

prevalence

A

total cases at a particular point in time

22
Q

thickening and velvety hyperpigmentation of skin in flexural areas

A

insulin resistant steas

gastrointestinal malignancies

23
Q

B blockers PREFERRED in pts w/ COPD/asthma

A

metoprolol
atenolol
acebutolol
esmolol

you MAAE prefer to use these for asthma

24
Q

isoproterenol

A

adrenergic agonist that STIMULATES B1 and B2

bronchodilation, increases HR and CO, decreases PAR

NOT used during acute MI

25
required for viridans to cause subacute bacterial endocarditis
preexisting valve damage that leads to local deposition of FIBRIN that is required for them to adhere