National Phlebotomy Certification
Exam Latest 2025/2026 Questions
with Correct Answers Solved
1. An individual who has little resistance to an infectious microbe is
referred to as a susceptible what?
- ANS - Host
2. Which of the following is an example of a work practice control that
reduces risk of exposure to bloodborne pathogens?
- ANS - Wearing gloves to draw blood
3. This ion is essential to the coagulation process.
- ANS - Calcium
4. QC protocols prohibit use of outdated evacuated tubes because
why?
- ANS - Tubes my not fill completely, changing additive-to-sample
ratios.
5. Molecular genetic testing requires what?
- ANS - Specimens to be collected in sterile EDTA.
, 6. What is the purpose of an antiglycolytic agent?
- ANS - Preserve glucose
7. Which on of the following tubes is filled first when multiple tubes
are filled using an evacuated tube system?
- ANS - Blood culture (SPS) tube
8. What is the recommended disinfectant for blood culture sites in
infants 2 months and older?
- ANS - Chlorhexidine gluconate
9. Latent fibrin formation in serum can result from what?
- ANS - Incomplete clotting when centrifuged
10. In which of the following areas does capillary specimen
collection differ from routine venipuncture when collecting a BUN
and CBC?
- ANS - Order of draw
11. This is an example of a preanalytical error made at the time
of collection.
- ANS - Failing to mix tubes
12. What constitutes a positive modified Allen test?
- ANS - The hand color returns to normal in 15 seconds.
Exam Latest 2025/2026 Questions
with Correct Answers Solved
1. An individual who has little resistance to an infectious microbe is
referred to as a susceptible what?
- ANS - Host
2. Which of the following is an example of a work practice control that
reduces risk of exposure to bloodborne pathogens?
- ANS - Wearing gloves to draw blood
3. This ion is essential to the coagulation process.
- ANS - Calcium
4. QC protocols prohibit use of outdated evacuated tubes because
why?
- ANS - Tubes my not fill completely, changing additive-to-sample
ratios.
5. Molecular genetic testing requires what?
- ANS - Specimens to be collected in sterile EDTA.
, 6. What is the purpose of an antiglycolytic agent?
- ANS - Preserve glucose
7. Which on of the following tubes is filled first when multiple tubes
are filled using an evacuated tube system?
- ANS - Blood culture (SPS) tube
8. What is the recommended disinfectant for blood culture sites in
infants 2 months and older?
- ANS - Chlorhexidine gluconate
9. Latent fibrin formation in serum can result from what?
- ANS - Incomplete clotting when centrifuged
10. In which of the following areas does capillary specimen
collection differ from routine venipuncture when collecting a BUN
and CBC?
- ANS - Order of draw
11. This is an example of a preanalytical error made at the time
of collection.
- ANS - Failing to mix tubes
12. What constitutes a positive modified Allen test?
- ANS - The hand color returns to normal in 15 seconds.
