USMLE Flashcards

1
Q

PSA screening

A

determined on a case by case basis

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2
Q

What mobitz is a wenchebach

A

mobitz 1

benign and transient

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3
Q

Long PR interval is a ?

A

1st degree heart block

PR > 0.20 seconds

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4
Q

Ps and QRS have no relationship

A

3rd degree heart block

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5
Q

Urine protein excretion of 1 g/ 24 hours

A

proteinuria

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6
Q

Treatment of severe PCP

A

tmp-smx and steroids

severe if: PaO2 < 70 or A-a > 35

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7
Q

Rx of toxic megacolon

A
emergency!
IV steroids 
nasogastric decompression 
abx
fluid management
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8
Q

Increased serum aldosterone results in?

A

serum alkolosis

Loss of H and loss of K into urine

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9
Q

Splenic sequestration of blood cells common in

A

cirrhosis
malaria
sickle cell

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10
Q

Cor pulmonale

A

impaired RV fxn from pulm htn

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11
Q

heart failure with preserved ejection fraction is usually?

A

due to hypertensive changes

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12
Q

Heart failure from CAD is likely?

A

systolic dysfunction with decreased LV ejection

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13
Q

antianginal effects of nitro are from?

A

systemic vasodilation–> ↓ preload –> ↓ wall stress and o2 demand

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14
Q

Ventilation in ARDS

A

low tidal volume improves mortality in ARDS

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15
Q

Febrile neutropenia needs?

A

empiric broad spectrum coverage with anti-pseudomonal coverage
Pip-Tazo is good

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16
Q

DDX of toxic megacolon

A
fever > 38
pulse > 120 
WBC > 10,500 
anemia 
w/ megacolon

*emergency steroids, abx, nasogastric decompression, and fluid management

17
Q

FDA has added a warning against the use of _________ as monotherapy in asthma

A

long-acting β2-agonists

18
Q

___________ is the only medication with consistent evidence showing that it improves depression symptoms in children and adolescents

A

Fluoxetine

19
Q

The primary treatment for symptomatic mitral valve prolapse is ___________

A

β-blockers

20
Q

___________ are the most common drug-related cause of acute interstitial nephritis

A

Antibiotics, especially penicillins, cephalosporins, and sulfonamides

21
Q

nervous system vs erection and ejaculation

A

erection- para

ejac- sympa

22
Q

treating premature ejaculation medically

A

Fluoxetine raises the threshold for orgasm, making it an effective treatment option

23
Q

Lab test for alcoholism

A

Elevated GGT is shown to be more sensitive than an elevated MCV, ALT, AST, or LDH

*but other things can also raise it, not sensitive

24
Q

What age do mammograms stop

A

75

every 2 years from 50-75

25
Q

s/s of thyroid storm

A

fever
hemodynamic instability
cardiac arrhythmia
CHF

26
Q

emergent rx for acute angle glaucoma

A

mannitol
acetazolamide
pilocarpine
timolol

27
Q

Atropine and pupil size

A

atropine dilates pupils

28
Q

estrogen and T4

A

estrogen –> ↑ T4 binding–> ↑ T4 labs

*but actually pt is euthyroid

29
Q

Good med for wt loss in DM

A

GLP-1 agonist

↓ appetite

30
Q

s/s of glucagonoma

A

rash
DM
GI upset
anemia

31
Q

Subclinical hypothyroidism

A

defined as slightly ↑ TSH and normal levels of thyroid hormone (free T4 or free T3 ) in an asymptomatic patient.