Labs Flashcards
1
Q
What to always consider with TSH out of range
A
Being sick can cause problems with thyroid interpretation
2
Q
mixing study
A
- test used to differentiate factor insufficiency from factor inhibitor (mixed pt’s plasma with control plasma with factors, correction indicates factor deficiency)
3
Q
nasal wash
A
for URI viral panel
4
Q
type and screen vs. type and cross
A
type and cross is actually type, screen, and cross
5
Q
what type and screen means
A
screen = HLA match, cross = ABO
6
Q
what to order to work up AKI with patient on diuretic
A
FEurea
7
Q
urea cutoff suggesting pre-renal
A
below 35 suggests prerenal, above suggests ATN
8
Q
what suggests dehydration on labs
A
low bicarb (poor tissue perfusion --> lactic acid production --> bicarb consumed as lactic acid rises) elevated creatinine (hypoperfusion)
9
Q
cutoff for starting someone on acei/arb for diabetic nephropathy
A
30 mg
10
Q
vaccines all diabetics need
A
prevnar
hep b
11
Q
cutoff for pulmonary artery hypertension
A
25-35
