Labs

Question 1

What to always consider with TSH out of range

Answer 1

Being sick can cause problems with thyroid interpretation

Question 2

mixing study

Answer 2

• test used to differentiate factor insufficiency from factor inhibitor (mixed pt’s plasma with control plasma with factors, correction indicates factor deficiency)

Question 3

nasal wash

Answer 3

for URI viral panel

Question 4

type and screen vs. type and cross

Answer 4

type and cross is actually type, screen, and cross

Question 5

what type and screen means

Answer 5

screen = HLA match, cross = ABO

Question 6

what to order to work up AKI with patient on diuretic

Answer 6

FEurea

Question 7

urea cutoff suggesting pre-renal

Answer 7

below 35 suggests prerenal, above suggests ATN

Question 8

what suggests dehydration on labs

Answer 8

low bicarb (poor tissue perfusion --> lactic acid production --> bicarb consumed as lactic acid rises)
elevated creatinine (hypoperfusion)

Question 9

cutoff for starting someone on acei/arb for diabetic nephropathy

Answer 9

30 mg

Question 10

vaccines all diabetics need

Answer 10

prevnar

hep b

Question 11

cutoff for pulmonary artery hypertension

Answer 11

25-35