UWorld_6.8 Flashcards Preview

USMLE Step 2 > UWorld_6.8 > Flashcards

Flashcards in UWorld_6.8 Deck (8)
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1
Q

Quad screen results concerning for trisomy 21

A
  • low a-fetoprotein
  • low estriol
  • elevated b-hcg
  • elevated inhibin A
2
Q

most common brain tumors in children

A
  • astrocytoma

- medulloblastoma = posterior fossa mass

3
Q

Evaluation of suspected pancreatic cancer

A
  • p/w obstructive jaundice ==> likely @ head ==> US

- p/w/out obstructive jaundice ==> likely @ tail ==> CT

4
Q

First-line for endocarditis in IVDU

A

vancomycin

5
Q

Exenatide: brand name, MOA, SE

A
  • exanatide = Byetta
  • MOA: GLP-1 receptor agonist
  • 2nd line w/metformin
  • low hypoglycemia risk
  • SE: weight loss
6
Q

Chlordizepoxide: class, use

A
  • benzo

- used in EtoH tx

7
Q

Most common causes of folic acid deficiency

A
  • poor diet

- drugs: phenytoin, methotrexate, TMP

8
Q

VIPoma presentation

A
  • tumor of pancreatic cells => VIP
  • watery diarrhea (secretory diarrhea)
  • m. weakness/cramps 2/2 hypokalemia
  • hypochlorhydia 2/2 decreased gastric acid secretion
  • VIP level > 75 pg/ml