2014-03-07 USMLE lab medicine - USMLE lab medicine Flashcards Preview

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Flashcards in 2014-03-07 USMLE lab medicine - USMLE lab medicine Deck (11):
1

2 major causes of inability to concentrate urine

- diabetes insipidus
- sickle cell disease/trait

2

In pregnancy, high ESR means

nothing, always elevated

3

In pregnancy, normal BUN or Cr may mean

renal disease

4

4 non-pancreatic sources of amylase

- salivary glands
- rest of GI tract
- renal failure
- ruptured tubal pregnancy

5

Elevated lipase AND amylase =

pancreatitis

6

Test specific for biliary alkaline phosphatase

GGT (gamma-glutamyltraspeptidase) or 5-nucleosidase

7

Side effect of chlorpropamide

SIADH

8

What does hyponatremia mean in a diabetic patient

Careful...sodium may be arificially low in hyperglycemia

9

pH relation of calcium and potassium

they move in the same direction (into cells with alkalosis)

10

Persistantly low K or Ca is likely complicated by

low Mg

11

BUN/Cr ratio >15 usually indicates

dehydration