5/21/13 Flashcards Preview

STEP II > 5/21/13 > Flashcards

Flashcards in 5/21/13 Deck (21):
1

What is the cause of physiologic jaundice of the newborn?

mostly low conjugation

2

What kind of hyperbilirubinemia is present in breast feeding (failure) jaundice?

unconjugated

3

When does breast feeding (failure) jaundice occur?

<1 wk

4

What is the mechanism of breast feeding jaundice?

increased enterohepatic circulation

5

When does mreast milk jaundice occur?

1-3 wks

6

What is thought to be one of the causes of breast milk jaundice?

factors in breast milk inhibit glucuronyl transferase

7

What is the treatment for breast milk jaundice?

stop breast feeding for 2-3 days

8

Does hepatitis cause conjugted or unconjugated hyperbilirubinemia?

conugated

9

What should you suspect in a baby that has conjugated hyperbilirubinemia, pale stools, hepatomegaly, and dark urine 1-6 wks after birth?

biliary atresia

10

How do you calculate the anion gap?

Na - (Cl + HCO3)

11

What is a normal anion gap?

12 +/- 2

12

What is the first-line tx for reactive arthritis?

NSAIDs (also Abx if Chlamydial)

13

What is the 2nd line tx for reactive arthritis?

sulfasalazine

14

What kind of heart block does digoxin toxicity cause?

third-degree AV block

15

At what T-cell count should prophylaxis against MAC be started in HIV pts?

<50 cells/uL

16

What 2 drugs are options for MAC prophylaxis?

azithromycin or clarithromycin

17

At what T-cell count should prophylaxis against PCP be started in HIV pts?

<200 cells / μL

18

What is the best drug to prophylax against PCP and toxoplasmosis in HIV pts?

TMP-SMX

19

What is the tx for asymptomatic Mobitz II 2nd- or 3rd-degree heart block?

transvenous pacemaker

20

Why do even asymptomatic pts w/ Mobitz II or 3rd-degree heart block need a pacemaker?

high risk of syncope

21

What is the acute treatment for any type of symptomatic bradycardia?

atropine