exam questions with answers
A significant source of _______ within red blood cells
should be considered during interpretation of and sources
of interference in serum enzyme analysis. - CORRECT
ANSWERS ✔✔AST...hemolysis can falsely elevate levels.
Transportation of 60-75% of plasma cholesterol is
performed by..... - CORRECT ANSWERS ✔✔low-density
lipoproteins (LDL)
Causes of increased BUN include... - CORRECT ANSWERS
✔✔*glomerulonephritis*, chronic renal failure, and tubular
necrosis
Primary hypothyroidism (Hashimoto's) TSH and free T4
results would look like... - CORRECT ANSWERS
✔✔Increased TSH and decreased free T4
True/ False: Serum for acid phosphatase can be stored at
room temperature. - CORRECT ANSWERS ✔✔False-
requires a preservative (citrate) and frozen storage to
help stabilize pH (~6.2)
, In familial hypercholesterolemia, the hallmark finding is
an elevation of... - CORRECT ANSWERS ✔✔low-density
lipoproteins (LDL)....lack of LDL-receptors prevents the
metabolism of LDL cholesterol, leading to increased LDL.
Regan isoenzyme has the same properties as alkaline
phosphatase that originates in the... - CORRECT
ANSWERS ✔✔placenta......Regan isoenzyme is an
abnormal ALP isoenzyme that is heat stable
The most specific enzyme test for acute pancreatitis is... -
CORRECT ANSWERS ✔✔Lipase....amylase and lipase both
increase, however the elevated level of lipase persists
longer than amylase
Ser osmolality equation: - CORRECT ANSWERS ✔✔(2 x
Na) + (Glu / 18) + (BUN / 2.8)
Aldosterone is released by the adrenal cortex upon
stimulation by... - CORRECT ANSWERS ✔✔Angiotensin II
The most heat labile (easily altered by heat) fraction of
alk phos is obtained from... - CORRECT ANSWERS
✔✔Bone...least to most heat stable: bone, liver, intestinal,
placental