Certified Phlebotomy Technician Exam Practice Test

CPT

1. B
2. B
3. C
4. A
5. C
6. A
7. D
8. D
9. B
10. A
11. C
12. D
13. C
14. B
15. B
16. B
17. A
18. A
19. A
20. D
21. C
22. D
23. A
24. A
25. A
26. D
27. A
28. D
29. D
30. C
31. B
32. D
33. A
34. D
35. D
36. C
37. B
38. A
39. B
40. A
41. A
42. B
43. B
44. B
45. B
46. B
47. A
48. D
49. D
50. B
51. A

Pros and Cons at a Glance

Sample Certified Phlebotomy Technician Exam Practice Questions

Try these questions from our free Certified Phlebotomy Technician Exam practice tests. The correct answer and an explanation follow each question.

1. Approximately what percentage of total blood volume is composed of plasma?

   • A. 35–40%
   • B. 45–50%
   • C. 55–60%
   • D. 65–70%

Answer: C. 55–60%

Plasma accounts for approximately 55% of total blood volume; the remaining 45% consists of formed elements including red blood cells, white blood cells, and platelets.

Answer: B. Bilirubin and porphyrin specimens

Bilirubin and porphyrins are photosensitive compounds that degrade rapidly when exposed to light, requiring amber containers or aluminum foil wrapping during transport.

Answer: B. The bend of the elbow, front of the arm

The antecubital fossa is the triangular hollow area located on the anterior (front) aspect of the elbow joint. This region is anatomically significant in phlebotomy because it contains the major superficial veins (median cubital, cephalic, and basilic) that are commonly accessed for blood draws.

Answer: C. Depositing it in an approved "sharps container"

After drawing blood, needles are considered contaminated sharps and pose a significant risk of needlestick injuries and pathogen transmission. They must be immediately disposed of in a puncture-resistant, leak-proof, labeled 'sharps container' to ensure the safety of healthcare workers and waste handlers. Recapping or breaking needles is strictly prohibited due to the high risk of injury.

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