NHCO CERTIFIED PHLEBOTOMY TECHNICIAN
(CPT) PRACTICE EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
100% GUARANTEED PASS!!
<LATEST VERSION>
1. Before performing venipuncture, which action is most critical to prevent
specimen misidentification?
A. Selecting the correct needle gauge
B. Asking the patient to state their name only
C. Verifying patient identity using two identifiers
D. Labeling the tube after leaving the room
Answer: C
Rationale: Using two identifiers (e.g., full name and date of birth) is the most
effective method to prevent identification errors.
2. A patient’s test requires serum analysis. Which tube should be selected first
if no blood cultures are ordered?
A. Light blue
B. Gold (SST)
C. Lavender
D. Gray
,Answer: B
Rationale: Serum separator tubes are appropriate for serum testing and follow
blood cultures in the order of draw.
3. A phlebotomist experiences a needlestick injury. What is the FIRST action?
A. Document the incident
B. Apply pressure and wash the area
C. Report to OSHA
D. Continue the procedure
Answer: B
Rationale: Immediate washing and flushing reduces pathogen transmission risk
before reporting and documentation.
4. Which vein is the preferred site for routine venipuncture in adults?
A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Dorsal hand vein
Answer: C
Rationale: The median cubital vein is stable, well-anchored, and has lower
complication risk.
5. A patient is anxious and hyperventilating before blood collection. What is
the best response?
A. Proceed quickly
B. Ask the patient to lie down and take slow breaths
C. Cancel the procedure
D. Ignore the anxiety
,Answer: B
Rationale: Calming the patient and reducing syncope risk ensures safety and
specimen quality.
6. Which tube must be filled completely to ensure accurate test results?
A. Lavender
B. Light blue
C. Green
D. Red
Answer: B
Rationale: Coagulation tubes require a precise blood-to-additive ratio.
7. What is the maximum recommended tourniquet application time?
A. 30 seconds
B. 1 minute
C. 2 minutes
D. 5 minutes
Answer: B
Rationale: Prolonged tourniquet time causes hemoconcentration and altered
results.
8. Which action violates HIPAA regulations?
A. Discussing patient results in a public hallway
B. Logging out of a computer
C. Using patient initials on tubes
D. Securing records
Answer: A
Rationale: Discussing protected health information in public breaches
confidentiality.
, 9. Capillary puncture is preferred for which patient group?
A. Patients requiring blood cultures
B. Dehydrated adults
C. Infants and neonates
D. Patients on anticoagulants
Answer: C
Rationale: Capillary collection is less invasive and safer for infants.
10. Which site is recommended for infant heel puncture?
A. Center of the heel
B. Posterior curvature
C. Medial or lateral plantar surface
D. Arch of the foot
Answer: C
Rationale: This area avoids bone and nerve damage.
11. Failure to invert anticoagulant tubes may result in:
A. Hemolysis
B. Clot formation
C. Increased plasma volume
D. Short draw
Answer: B
Rationale: Proper mixing prevents clotting and ensures accurate results.
(CPT) PRACTICE EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
100% GUARANTEED PASS!!
<LATEST VERSION>
1. Before performing venipuncture, which action is most critical to prevent
specimen misidentification?
A. Selecting the correct needle gauge
B. Asking the patient to state their name only
C. Verifying patient identity using two identifiers
D. Labeling the tube after leaving the room
Answer: C
Rationale: Using two identifiers (e.g., full name and date of birth) is the most
effective method to prevent identification errors.
2. A patient’s test requires serum analysis. Which tube should be selected first
if no blood cultures are ordered?
A. Light blue
B. Gold (SST)
C. Lavender
D. Gray
,Answer: B
Rationale: Serum separator tubes are appropriate for serum testing and follow
blood cultures in the order of draw.
3. A phlebotomist experiences a needlestick injury. What is the FIRST action?
A. Document the incident
B. Apply pressure and wash the area
C. Report to OSHA
D. Continue the procedure
Answer: B
Rationale: Immediate washing and flushing reduces pathogen transmission risk
before reporting and documentation.
4. Which vein is the preferred site for routine venipuncture in adults?
A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Dorsal hand vein
Answer: C
Rationale: The median cubital vein is stable, well-anchored, and has lower
complication risk.
5. A patient is anxious and hyperventilating before blood collection. What is
the best response?
A. Proceed quickly
B. Ask the patient to lie down and take slow breaths
C. Cancel the procedure
D. Ignore the anxiety
,Answer: B
Rationale: Calming the patient and reducing syncope risk ensures safety and
specimen quality.
6. Which tube must be filled completely to ensure accurate test results?
A. Lavender
B. Light blue
C. Green
D. Red
Answer: B
Rationale: Coagulation tubes require a precise blood-to-additive ratio.
7. What is the maximum recommended tourniquet application time?
A. 30 seconds
B. 1 minute
C. 2 minutes
D. 5 minutes
Answer: B
Rationale: Prolonged tourniquet time causes hemoconcentration and altered
results.
8. Which action violates HIPAA regulations?
A. Discussing patient results in a public hallway
B. Logging out of a computer
C. Using patient initials on tubes
D. Securing records
Answer: A
Rationale: Discussing protected health information in public breaches
confidentiality.
, 9. Capillary puncture is preferred for which patient group?
A. Patients requiring blood cultures
B. Dehydrated adults
C. Infants and neonates
D. Patients on anticoagulants
Answer: C
Rationale: Capillary collection is less invasive and safer for infants.
10. Which site is recommended for infant heel puncture?
A. Center of the heel
B. Posterior curvature
C. Medial or lateral plantar surface
D. Arch of the foot
Answer: C
Rationale: This area avoids bone and nerve damage.
11. Failure to invert anticoagulant tubes may result in:
A. Hemolysis
B. Clot formation
C. Increased plasma volume
D. Short draw
Answer: B
Rationale: Proper mixing prevents clotting and ensures accurate results.
