Certification Exam question with correct
answers (100% verified answers) plus
rationales Q &A
2026 INSTANT DOWNLOAD PDF
1. What is the primary purpose of quality control (QC) in a laboratory?
A. Increase sample volume
B. Ensure reliability and accuracy of test results
C. Reduce staffing requirements
D. Increase laboratory profits
Answer: B
Rationale: Quality control procedures are designed to verify accuracy, measure
precision, and detect errors in laboratory testing processes.
2. A laboratory technician in Massachusetts must perform testing under whose
supervision?
A. Hospital administrator
B. Registered nurse
C. Qualified laboratory technologist, supervisor, or director
D. Patient care assistant
Answer: C
Rationale: Massachusetts regulations require laboratory technicians to work under
the supervision of qualified laboratory personnel.
,3. Which of the following best describes precision?
A. Closeness to the true value
B. Ability to repeat measurements consistently
C. Speed of testing
D. Cost effectiveness
Answer: B
Rationale: Precision refers to the reproducibility of results when the same sample
is tested repeatedly.
4. What is the first step in specimen identification?
A. Labeling after testing
B. Comparing results with previous records
C. Verifying patient identifiers
D. Recording reference ranges
Answer: C
Rationale: Correct patient identification prevents specimen mix-ups and reporting
errors.
5. Which personal protective equipment (PPE) is most commonly required when
handling blood specimens?
A. Sandals
B. Gloves
C. Sunglasses
D. Earplugs
Answer: B
, Rationale: Gloves protect laboratory personnel from exposure to bloodborne
pathogens.
6. Hemolysis in a blood specimen may cause:
A. Improved accuracy
B. False laboratory results
C. Faster testing
D. Increased sample volume
Answer: B
Rationale: Hemolysis releases intracellular contents that can interfere with many
laboratory tests.
7. What does SOP stand for?
A. Standard Operating Procedure
B. Sample Observation Program
C. Safety Operations Policy
D. Systematic Output Plan
Answer: A
Rationale: SOPs provide standardized instructions for laboratory activities.
8. Which department commonly performs bacterial culture testing?
A. Histology
B. Microbiology
C. Hematology
D. Cytology
Answer: B