Random UWorld

Question 1

Sotalol

Answer 1

Class III anti-arrythmic (block K+ channels as well as b-blocker)

Question 2

action of cilostizol and dipyridamole

Answer 2

Direct vasodilators and prevent platelet aggregation

Question 3

arsenic poisoning rx

Answer 3

dimercaprol

Question 4

Class switching to IgE via

Answer 4

IL-4

Question 5

eosinophil activation via

Answer 5

IL-5

Question 6

IgA class switching via

Answer 6

IL-5

Question 7

calcipotriene =

Answer 7

vitD analog. can use to treat psoriasis

Question 8

excessive MMP and fibroblast activity in wound =

Answer 8

contracture

Question 9

HBs =
HBc =
HBe =

Answer 9

HBs = envelope = previous status/immunity
HBc = nucleocapsid core = current status
HBe = precore/core = infectivity

Question 10

postural hypertension

Answer 10

Conn’s

Question 11

Nuclei and NTs

Answer 11

Raphe = 5HT
Ceruleus = NE
Meynert = Ach

Question 12

MRSA rx, MOA, AE

Answer 12

Vanco:

• blocks D-ala D-ala
• Nephrotoxicity, ototoxicity, red-man

Daptomycin:

• disrupts PM altering electrolytes
• myopathy/rhabdo increasing CK, inactivated by surfactant

Linezolid:

• binds 50s preventing initiation complex
• Thombocytopenia, peripheral neuropathy, serotonin syndrome

Question 13

Biotin use

Answer 13

CARBOXYLASES!

• pyruvate carboxylase: pyruvate to OAA
• acetyl coA carboxylase; acetyl coA to malonyl coA
• propionyl coA carboxylase: propionyl coA to methylmalonyl coA

Question 14

rhabditiform larvae in stool

Answer 14

strongyloides

Question 15

Lyme rx

Answer 15

doxycyclin or penicilin-type Abx

Question 16

layer directly around fetus

Answer 16

amnion

Question 17

pH that ppts renal stones

Answer 17

All @ low pH .: CD

EXCEPT struvite stones (NH4-Mg-PO4)

Question 18

anesthetic solubility directly proportional to:

Answer 18

blood:gas coefficient

Question 19

MC antidepressants to ppt mania

Answer 19

TCAs

Venlafaxine (SNRI)

Question 20

thiazide AE

Answer 20

HYPER-GLUC

Question 21

What receptors does NE work on

Answer 21

a1, a2, b1

Question 22

lowest O2 content vessel

Answer 22

coronary sinuses

Question 23

oral nitrate

Answer 23

isosorbide mononitrate

Question 24

first aortic arch

Answer 24

maxillary artery

Question 25

second aortic arch

Answer 25

stapedial a.

hyoid a.

Question 26

third aortic arch

Answer 26

common carotid

proximal internal carotid

Question 27

fourth aortic arch

Answer 27

R = proximal subclavian
L = aortic arch

Question 28

sixth aortic arch

Answer 28

proximal pulmonary arteries

L = ductus arteriosus

Question 29

Rx peripheral arterial disease

Answer 29

cilostazole

Inhibits PDE, causing direct vasodilation and prevents platelet aggregation (by decreasing cAMP)

Question 30

alpha blockers

Answer 30

phentolamine (rev)

phenoxybenzamine (irrev.)

Question 31

nitrates cause

Answer 31

large vein dilation

[dilate arteries with a1 blockers]

Question 32

LPLase defic. risk of:

Answer 32

acute pancreatitis

Question 33

what does the nucleolus do

Answer 33

makes rRNA (with RNA pol I) and assembles ribosomes

Question 34

trachea movements and lung lesions

Answer 34

Towards = atelectasis or simple pneumothorax

Away = tension pneumothorax or large pleural effusion