5/26/13 a Flashcards Preview

STEP II > 5/26/13 a > Flashcards

Flashcards in 5/26/13 a Deck (20):
1

What is a good cutoff of plt count to start treating for ITP?

<30,000

2

What is the first-line drug for ITP?

corticosteroids

3

What is the first-line Tx for C. dif?

metronidazole

4

What 2 drugs should be given for the empiric treatment of enephalitis in a non-immunocompromised adult?

Ceftriaxone (or cefotaxime) + Vancomycin

5

What bug are people over 50 at risk of getting as a cause of meningitis?

Listeria monocytogenes

6

What shoulld be added to the menignitis treatment regimen in people over 50 for Listeria?

ampicillin

7

What should be given along w/ the Abx for menignitis in the normal adult?

dexamethasone

8

What a re 3 indications for CT before LP in pts w/ meningitis?

papilledema, new-onset seizures, altered mental status, focal nauro compromise, immunocompromise

9

What should be suspected in a severely immunocompromised AIDS pt w/ neurological changes and patchy, hypodense lesions in the white matter on CT?

Progressive Mulitfocal Leukoencephalopathy (PML)

10

What is the best (most practical) confirmatory test for progressive multifocal leukoencephalopathy?

LP for JC virus DNA

11

If an AIDS pt has a CT showing cystic lesions w/ calcifications and surrounding hydrocephalus, what is it?>

neurocysticercosis

12

What is the tx for neurocysticercosis in the AIDS pt?

albendazole and methylprednisolone

13

What is the treatment for progressive multifocal leukoencephalopathy in the AIDS pt?

no specific therapy; optimize HAART

14

If AIDS pt w/ ring-enhancing brain lesions is unresponsive to pyrimethamine and sulfadiazine, what is the next step?

brain biopsy for CNS lymphoma (?)

15

What layers of the esophageal wall are part of the outpouching of a Zenker's diverticulum?

mucosa only (not a tre diverticulum!)

16

Is a Zenker's diverticulum located above or below the upper esophageal sphincter?

above

17

What is the first step in hyperkalemia? Why do you do it?

calcium gluconate to stabilize the myocardium

18

What causes the weakness, confusion, convulsions, and coma of hyperosmolar nonketotic coma (HONK)?

profound dehydration d/t hyperglycemic diuresis

19

What are 2 ECG findings in hyperkalemia, other than peaked T waves?

short QT interval and ST depression

20

A COPD pt has palpitations, feels like his heart skips a beat sometimes, and has extra stress lately. What is the most likely explanation?

Premature Atrial Contractions (PACs)