Chemistry ASCP BOC (all
Questions) with answers
Testing for the diagnosis of lead poisoning in children
should include:
whole blood lead
A drug has a half-life of 6 hours. If a dose is given every 6
hours, a steady-state drug level would usually be
achieved in:
24 - 42 hours
The International Federation for Clinical Chemistry (IFCC)
recommends the use of methods such as the Bessey-
Lowry-Brock method for determining alkaline
phosphatase activity. The substrate used in this type of
method is:
para-nitrophenylphosphate
,The degree to which the kidney concentrates the
glomerular filtrate can be determined by:
urine to serum osmolality ratio
Blood samples were collected at the beginning of an
exercise class and after thirty minutes of aerobic activity.
Which of the following would be most consistent with the
post-exercise sample?
elevated lactic acid, elevated pyruvate
Coulometry is often used to measure:
chloride in sweat
Urobilinogen is formed in the:
intestine
A patient is admitted to the emergency room in a state of
metabolic alkalosis. Which of the following would be
consistent with this diagnosis?
high TCO2, increased HCO3
,The best method for ionized calcium involves the use of:
ion selective electrode that detects change in potential
when Ca2+ binds reversibly to the membrane
A 1-year-old girl with a hyperlipoproteinemia and
lipoprotein lipase deficiency has the following lipid profile:
creamy layer over clear serum
Which of the following statements most correctly
describes the utility of clinical laboratory assays for tumor
markers?
tumor markers are useful in tracking the efficacy of
treatment
Which of the following is an example of a peptide bond?
, B
What is the proper pH for the buffered solution used to
perform serum protein electrophoresis?
8.6
This illustration represents the change in absorbance at
340 nm over a period of 8 minutes in an assay for lactate
dehydrogenase. True statements about this figure
include:
nonlinearity after 6 minutes is due to substrate
exhaustion
The most specific enzyme test for acute pancreatitis is:
lipase
Questions) with answers
Testing for the diagnosis of lead poisoning in children
should include:
whole blood lead
A drug has a half-life of 6 hours. If a dose is given every 6
hours, a steady-state drug level would usually be
achieved in:
24 - 42 hours
The International Federation for Clinical Chemistry (IFCC)
recommends the use of methods such as the Bessey-
Lowry-Brock method for determining alkaline
phosphatase activity. The substrate used in this type of
method is:
para-nitrophenylphosphate
,The degree to which the kidney concentrates the
glomerular filtrate can be determined by:
urine to serum osmolality ratio
Blood samples were collected at the beginning of an
exercise class and after thirty minutes of aerobic activity.
Which of the following would be most consistent with the
post-exercise sample?
elevated lactic acid, elevated pyruvate
Coulometry is often used to measure:
chloride in sweat
Urobilinogen is formed in the:
intestine
A patient is admitted to the emergency room in a state of
metabolic alkalosis. Which of the following would be
consistent with this diagnosis?
high TCO2, increased HCO3
,The best method for ionized calcium involves the use of:
ion selective electrode that detects change in potential
when Ca2+ binds reversibly to the membrane
A 1-year-old girl with a hyperlipoproteinemia and
lipoprotein lipase deficiency has the following lipid profile:
creamy layer over clear serum
Which of the following statements most correctly
describes the utility of clinical laboratory assays for tumor
markers?
tumor markers are useful in tracking the efficacy of
treatment
Which of the following is an example of a peptide bond?
, B
What is the proper pH for the buffered solution used to
perform serum protein electrophoresis?
8.6
This illustration represents the change in absorbance at
340 nm over a period of 8 minutes in an assay for lactate
dehydrogenase. True statements about this figure
include:
nonlinearity after 6 minutes is due to substrate
exhaustion
The most specific enzyme test for acute pancreatitis is:
lipase
