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ASCP MLT CHEMISTRY EXAM LATEST
ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS
What is serum? - (ANSWER)Serum is the fluid from blood without clotting factors
What is plasma? - (ANSWER)Liquid portion of blood with clotting factors
Serum/Plasma which one is used for most chemistry tests - (ANSWER)Serum is
used for most chemistry tests
_____ top tube is used for most chemistry tests - (ANSWER)Red top tube is used
for most chemistry tests
Name four anticoagulants used in tubes for plasma - (ANSWER)Oxalate, EDTA,
Citrate, and Heparin
What anticoagulant is the first choice for coagulation studies? -
(ANSWER)heparin is first choice
Heparin on ice is used for what three tests? - (ANSWER)Heparin (on ice):
Ammonia, Blood gasses, and lactic acid.
What preservative is used in a grey top tube? - (ANSWER)Sodium fluoride is used
as a preservative in a grey top tube.
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What does sodium fluoride do? - (ANSWER)Sodium fluoride is used to preserve
glucose, aka slow glycolysis
T/F you can use a grey top for a BUN - (ANSWER)FALSE the sodium fluoride in the
grey tube will inhibit urease
T/F you cant use a grey top for a BUN - (ANSWER)TRUE the sodium fluoride
would inhibit urease
What anticoagulant contains Na+ and K+ - (ANSWER)EDTA contains Na+ and K+
T/F you can test Na+ and K+ in a tube with EDTA - (ANSWER)FALSE EDTA contains
Na+ and K+
T/F you can't test Na+ and K+ in a tube with EDTA - (ANSWER)TRUE EDTA
contains Na+ and K+
T/F you cant test Ca++ in a tube with EDTA - (ANSWER)TRUE because calcium is
chelated in EDTA (will cause a false lower result)
T/F you can test Ca++ in a tube with EDTA - (ANSWER)FALSE because calcium is
chelated in EDTA (will cause a false lower result)
ASCP MLT CHEMISTRY EXAM LATEST
ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS
What is serum? - (ANSWER)Serum is the fluid from blood without clotting factors
What is plasma? - (ANSWER)Liquid portion of blood with clotting factors
Serum/Plasma which one is used for most chemistry tests - (ANSWER)Serum is
used for most chemistry tests
_____ top tube is used for most chemistry tests - (ANSWER)Red top tube is used
for most chemistry tests
Name four anticoagulants used in tubes for plasma - (ANSWER)Oxalate, EDTA,
Citrate, and Heparin
What anticoagulant is the first choice for coagulation studies? -
(ANSWER)heparin is first choice
Heparin on ice is used for what three tests? - (ANSWER)Heparin (on ice):
Ammonia, Blood gasses, and lactic acid.
What preservative is used in a grey top tube? - (ANSWER)Sodium fluoride is used
as a preservative in a grey top tube.
, 2
What does sodium fluoride do? - (ANSWER)Sodium fluoride is used to preserve
glucose, aka slow glycolysis
T/F you can use a grey top for a BUN - (ANSWER)FALSE the sodium fluoride in the
grey tube will inhibit urease
T/F you cant use a grey top for a BUN - (ANSWER)TRUE the sodium fluoride
would inhibit urease
What anticoagulant contains Na+ and K+ - (ANSWER)EDTA contains Na+ and K+
T/F you can test Na+ and K+ in a tube with EDTA - (ANSWER)FALSE EDTA contains
Na+ and K+
T/F you can't test Na+ and K+ in a tube with EDTA - (ANSWER)TRUE EDTA
contains Na+ and K+
T/F you cant test Ca++ in a tube with EDTA - (ANSWER)TRUE because calcium is
chelated in EDTA (will cause a false lower result)
T/F you can test Ca++ in a tube with EDTA - (ANSWER)FALSE because calcium is
chelated in EDTA (will cause a false lower result)
