Question 1
According to the Beer-Lambert law (A = εbc), if all else is held constant, absorbance is directly proportional to which of the following?
Correct Answer:
The path length and the analyte concentration
Question 2
In high-performance liquid chromatography (HPLC) using a reversed-phase C18 column, which analyte characteristic causes the longest retention time?
Correct Answer:
High hydrophobicity (nonpolar character)
Question 3
In tandem mass spectrometry (LC-MS/MS), what does multiple reaction monitoring (MRM) measure to achieve high specificity?
Correct Answer:
A specific precursor ion fragmented to a specific product ion transition
Question 4
Serum protein electrophoresis on agarose gel at alkaline pH separates proteins primarily on the basis of which property?
Correct Answer:
Net surface charge (charge-to-size ratio)
Question 5
In a competitive immunoassay, how does the measured signal relate to analyte concentration in the patient sample?
Correct Answer:
Inversely — signal decreases as analyte concentration increases
Question 1
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Prepare with the DABCC Practice Questions - Diplomate of the American Board of Clinical Chemistry Exam practice quiz. This question bank includes 100 questions covering serum, patient, method, value, and reference. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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DABCC Practice Questions - Diplomate of the American Board of Clinical Chemistry Exam

This practice set contains 100 questions from the matching question bank and focuses on serum, patient, method, value, and reference. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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