10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free CCT questions are organized by exam domain, so you can see how each part of the Clinical Chemistry Technologist (CCT) blueprint is tested. Reveal the answer and explanation under each question.
A clinical chemistry technologist reviews glucose assay quality control data. A control has a mean of 100 mg/dL and SD of 2 mg/dL. A result of 104 mg/dL is obtained. What is the best interpretation?
Correct answer: B - The result is 2 SD above the mean and requires QC-rule review
Lipemic serum produces falsely increased absorbance in a photometric assay. What is the most likely cause?
Correct answer: A - Light scattering interference
A sandwich immunoassay gives a surprisingly low result in a patient with suspected extremely high analyte concentration. Dilution produces a much higher value. What explains this finding?
Correct answer: B - High-dose hook effect
Which analytical approach is most appropriate for identifying a low-concentration drug in a complex biological sample with high specificity requirements?
Correct answer: A - Chromatography coupled with mass spectrometry
An ion-selective electrode method measures sodium by detecting:
Correct answer: A - Electrical potential across a selective membrane
Hemoglobin A1c is primarily used to assess:
Correct answer: A - Longer-term glycemic exposure
A serum protein electrophoresis pattern suggests a monoclonal protein. Which follow-up is most appropriate?
Correct answer: A - Immunofixation or related confirmatory testing
An arterial blood gas shows pH 7.28, elevated PCO2, and no primary bicarbonate decrease. Which disorder is most consistent?
Correct answer: A - Respiratory acidosis
A patient has elevated TSH and decreased free T4. Which interpretation is most consistent?
Correct answer: A - Primary hypothyroidism
A trough drug concentration is collected immediately before the next dose. Why is this timing used?
Correct answer: A - To estimate the lowest concentration before dosing
The CCT exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,020 more CCT questions with explanations.
Continue in the free practice test →
View plans