Exam (elaborations)
ASCP-CHEMISTRY SECTION QUESTIONS AND ANSWERS
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ASCP-CHEMISTRY SECTION QUESTIONS AND ANSWERS
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ASCP-CHEMISTRY SECTION QUESTIONS ANDANSWERS
Aldosterone is released by the adrenal cortex upon stimulation by:
A. Renin
B. Angiotensinogen
C. Angiotenisinogen I
D. Angiotensinogen II - Answers -D. Angiotensinogen II
Clinical Assays for tumor markers are most important for:
A. screening for the presence of cancer
B. monitoring the course of known cancer
C. confirming the absence of disease
D. identifying patients at risk for cancer - Answers -B. Monitoring the course of known
cancer
Detection of which of the following substances is most useful to monitor the course of a
patient with testicular cancer?
A. alpha-fetoprotein
B. carcinoembryonic antigen
C. prolactin
D. testosterone - Answers -A. alpha-fetoprotein
Increased concentrations of alpha-fetoprotein (AFP) in adults are most characteristically
associated with:
A. hepatocellular carcinoma
B. alcoholic cirrhosis
C. chronic active hepatitis
D. multiple myeloma - Answers -A. hepatocellular carcinoma
Carcinoembryonic antigen (CEA) is most likely to be produced in a maignancy involving
the:
A. Brain
B. Testes
C. Bone
D. Colon - Answers -D. Colon
Testing for the diagnosis of lead poisoning should include:
A. erythrocyte protoporphyrin (EPP)
B. urine delta-aminolevulinic acid
, C. whole blood lead
D. zinc protoporphyrin (ZPP) - Answers -C. whole blood lead
Blood received in the laboratory for blood gas analysis must meet which of the following
requirements?
A. on ice, thin fibrin strands only, no air bubbles
B. on ice, no clots, fewer than 4 air bubbles
C. on ice, no clots, no air bubbles
D. room temperature, no clots, no air bubbles - Answers -C. on ice, no clots, no air
bubbles
In a specimen collected for plasma glucose analysis, sodium fluoride:
A. serves as a coenzyme of hexokinase
B. prevents reactivity of non-glucose reducing substances
C. precipitates proteins
D. inhibits glycolysis - Answers -D. inhibits glycolysis
As part of a hyperlipidemia screening program, the following results were obtained on a
a 25-yr-old woman 6 hours after eating:
triglycerides: 260 mg/dL (2.86 mmol/L)
cholesterol: 120 mg/dL (3.12 mmol/L)
Which is the best interpretation of these results?
A. both results are normal and not affected by the recent meal
B. cholesterol is normal, but triglycerides are elevated, which may be attributed to the
recent meal
C. both results are elevated, indicating a metabolic problem in addition to the nonfasting
state
D. both results are below normal despite the recent meal, indicating a metabolic
problem - Answers -B. cholesterol is normal, but triglycerides are elevated, which may
be attributed to the recent meal
Blood was collected in a serum separator tube on a patient who has been fasting since
midnight. The time of collection was 7 AM. The laboratory test which should be
recollected is:
A. triglycerides
B. iron
C. LD
D. sodium - Answers -A. triglycerides
Unless blood gas measurments are made immediately after sampling, in vitro glycolysis
f the blood causes a:
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