Arizona Phlebotomy Technician
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
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1. A phlebotomy technician is primarily responsible for which of the
following duties in a healthcare setting?
A. Administering medications to patients
B. Diagnosing medical conditions
C. Drawing blood specimens for laboratory analysis
D. Performing surgical procedures
Answer: C
Rationale: The primary role of a phlebotomy technician is to collect
blood specimens for testing, transfusions, or research, which is
essential for diagnosis and treatment planning.
2. Which vein is most commonly used for venipuncture in adults?
A. Radial vein
B. Basilic vein
C. Median cubital vein
D. Cephalic arch vein
Answer: C
Rationale: The median cubital vein is preferred due to its large size,
superficial location, and lower risk of complications compared to
other veins.
,3. What is the primary purpose of using antiseptic before venipuncture?
A. To numb the skin
B. To prevent infection
C. To improve blood flow
D. To reduce bleeding
Answer: B
Rationale: Antiseptics are used to eliminate or reduce
microorganisms on the skin, minimizing the risk of infection during
blood collection.
4. Which order of draw is correct to prevent cross-contamination of
additives?
A. Lavender, red, blue, green
B. Blue, red, green, lavender
C. Red, blue, lavender, green
D. Green, lavender, red, blue
Answer: B
Rationale: The correct order of draw ensures that additives from one
tube do not contaminate another, preserving specimen integrity.
5. Which additive is commonly found in lavender-top tubes?
A. Sodium citrate
B. Heparin
C. EDTA
D. Fluoride
Answer: C
Rationale: Lavender-top tubes contain EDTA, which acts as an
anticoagulant by binding calcium in blood samples.
6. What is the maximum recommended time a tourniquet should be
applied?
A. 30 seconds
B. 1 minute
C. 2 minutes
D. 5 minutes
Answer: B
Rationale: Prolonged tourniquet application can lead to
, hemoconcentration and inaccurate test results, so it should not
exceed one minute.
7. Which complication results from blood leaking into surrounding tissue
during venipuncture?
A. Hemolysis
B. Hematoma
C. Thrombosis
D. Edema
Answer: B
Rationale: A hematoma occurs when blood escapes from the vein
into surrounding tissues, causing swelling and discoloration.
8. What is the correct angle of needle insertion for venipuncture?
A. 5–10 degrees
B. 15–30 degrees
C. 45–60 degrees
D. 75–90 degrees
Answer: B
Rationale: A 15–30 degree angle ensures proper entry into the vein
while minimizing trauma to surrounding tissues.
9. Which organization establishes guidelines for infection control in
healthcare settings?
A. OSHA
B. CDC
C. FDA
D. WHO
Answer: B
Rationale: The CDC provides guidelines for infection control practices
to protect patients and healthcare workers.
10. What is the purpose of a chain of custody form?
A. To track laboratory equipment
B. To document specimen handling for legal purposes
C. To record patient vital signs
D. To monitor medication administration
Answer: B
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1. A phlebotomy technician is primarily responsible for which of the
following duties in a healthcare setting?
A. Administering medications to patients
B. Diagnosing medical conditions
C. Drawing blood specimens for laboratory analysis
D. Performing surgical procedures
Answer: C
Rationale: The primary role of a phlebotomy technician is to collect
blood specimens for testing, transfusions, or research, which is
essential for diagnosis and treatment planning.
2. Which vein is most commonly used for venipuncture in adults?
A. Radial vein
B. Basilic vein
C. Median cubital vein
D. Cephalic arch vein
Answer: C
Rationale: The median cubital vein is preferred due to its large size,
superficial location, and lower risk of complications compared to
other veins.
,3. What is the primary purpose of using antiseptic before venipuncture?
A. To numb the skin
B. To prevent infection
C. To improve blood flow
D. To reduce bleeding
Answer: B
Rationale: Antiseptics are used to eliminate or reduce
microorganisms on the skin, minimizing the risk of infection during
blood collection.
4. Which order of draw is correct to prevent cross-contamination of
additives?
A. Lavender, red, blue, green
B. Blue, red, green, lavender
C. Red, blue, lavender, green
D. Green, lavender, red, blue
Answer: B
Rationale: The correct order of draw ensures that additives from one
tube do not contaminate another, preserving specimen integrity.
5. Which additive is commonly found in lavender-top tubes?
A. Sodium citrate
B. Heparin
C. EDTA
D. Fluoride
Answer: C
Rationale: Lavender-top tubes contain EDTA, which acts as an
anticoagulant by binding calcium in blood samples.
6. What is the maximum recommended time a tourniquet should be
applied?
A. 30 seconds
B. 1 minute
C. 2 minutes
D. 5 minutes
Answer: B
Rationale: Prolonged tourniquet application can lead to
, hemoconcentration and inaccurate test results, so it should not
exceed one minute.
7. Which complication results from blood leaking into surrounding tissue
during venipuncture?
A. Hemolysis
B. Hematoma
C. Thrombosis
D. Edema
Answer: B
Rationale: A hematoma occurs when blood escapes from the vein
into surrounding tissues, causing swelling and discoloration.
8. What is the correct angle of needle insertion for venipuncture?
A. 5–10 degrees
B. 15–30 degrees
C. 45–60 degrees
D. 75–90 degrees
Answer: B
Rationale: A 15–30 degree angle ensures proper entry into the vein
while minimizing trauma to surrounding tissues.
9. Which organization establishes guidelines for infection control in
healthcare settings?
A. OSHA
B. CDC
C. FDA
D. WHO
Answer: B
Rationale: The CDC provides guidelines for infection control practices
to protect patients and healthcare workers.
10. What is the purpose of a chain of custody form?
A. To track laboratory equipment
B. To document specimen handling for legal purposes
C. To record patient vital signs
D. To monitor medication administration
Answer: B
