Florida Phlebotomy Technician
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1. What is the primary purpose of phlebotomy?
A. Administer medications
B. Collect blood specimens for testing
C. Perform laboratory analysis
D. Diagnose diseases
Answer: B
Rationale: Phlebotomy involves collecting blood specimens that are later analyzed
in the laboratory.
2. Which vein is most commonly used for routine venipuncture?
A. Radial vein
B. Basilic vein
C. Median cubital vein
D. Femoral vein
Answer: C
Rationale: The median cubital vein is usually the easiest to access and has a lower
risk of complications.
3. Before performing a venipuncture, the phlebotomist must first:
A. Label the tubes
B. Identify the patient correctly
C. Apply the tourniquet
D. Select the needle
,Answer: B
Rationale: Proper patient identification is the most important step in preventing
specimen errors.
4. Which color-top tube is commonly used for coagulation studies?
A. Lavender
B. Green
C. Blue
D. Red
Answer: C
Rationale: Light blue-top tubes contain sodium citrate and are used for
coagulation testing.
5. What is the purpose of a tourniquet during venipuncture?
A. Sterilize the site
B. Increase venous blood flow visibility
C. Stop arterial blood flow
D. Reduce pain
Answer: B
Rationale: A tourniquet temporarily restricts venous return, making veins easier to
locate.
6. Which antiseptic is most commonly used before routine venipuncture?
A. Hydrogen peroxide
B. Alcohol (70% isopropyl alcohol)
C. Soap only
D. Saline solution
Answer: B
Rationale: Alcohol effectively reduces microorganisms on the skin before blood
collection.
7. How long should alcohol be allowed to dry before venipuncture?
A. No drying time is needed
B. Until completely air-dried
C. Exactly 30 seconds only
D. Five minutes
, Answer: B
Rationale: Allowing alcohol to dry helps prevent discomfort and specimen
contamination.
8. Which needle gauge is commonly used for routine adult venipuncture?
A. 14 gauge
B. 16 gauge
C. 21 gauge
D. 30 gauge
Answer: C
Rationale: A 21-gauge needle is commonly used for routine blood collection in
adults.
9. What is the recommended angle of needle insertion for venipuncture?
A. 5 degrees
B. 15–30 degrees
C. 45–60 degrees
D. 90 degrees
Answer: B
Rationale: A 15–30 degree angle allows proper vein entry while minimizing
trauma.
10. Which tube is commonly used for complete blood count (CBC) testing?
A. Lavender
B. Gray
C. Blue
D. Yellow
Answer: A
Rationale: Lavender-top tubes contain EDTA and are commonly used for
hematology tests.
11. What additive is found in a lavender-top tube?
A. Sodium citrate
B. Heparin
C. EDTA
D. Fluoride
Certification Exam with Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of phlebotomy?
A. Administer medications
B. Collect blood specimens for testing
C. Perform laboratory analysis
D. Diagnose diseases
Answer: B
Rationale: Phlebotomy involves collecting blood specimens that are later analyzed
in the laboratory.
2. Which vein is most commonly used for routine venipuncture?
A. Radial vein
B. Basilic vein
C. Median cubital vein
D. Femoral vein
Answer: C
Rationale: The median cubital vein is usually the easiest to access and has a lower
risk of complications.
3. Before performing a venipuncture, the phlebotomist must first:
A. Label the tubes
B. Identify the patient correctly
C. Apply the tourniquet
D. Select the needle
,Answer: B
Rationale: Proper patient identification is the most important step in preventing
specimen errors.
4. Which color-top tube is commonly used for coagulation studies?
A. Lavender
B. Green
C. Blue
D. Red
Answer: C
Rationale: Light blue-top tubes contain sodium citrate and are used for
coagulation testing.
5. What is the purpose of a tourniquet during venipuncture?
A. Sterilize the site
B. Increase venous blood flow visibility
C. Stop arterial blood flow
D. Reduce pain
Answer: B
Rationale: A tourniquet temporarily restricts venous return, making veins easier to
locate.
6. Which antiseptic is most commonly used before routine venipuncture?
A. Hydrogen peroxide
B. Alcohol (70% isopropyl alcohol)
C. Soap only
D. Saline solution
Answer: B
Rationale: Alcohol effectively reduces microorganisms on the skin before blood
collection.
7. How long should alcohol be allowed to dry before venipuncture?
A. No drying time is needed
B. Until completely air-dried
C. Exactly 30 seconds only
D. Five minutes
, Answer: B
Rationale: Allowing alcohol to dry helps prevent discomfort and specimen
contamination.
8. Which needle gauge is commonly used for routine adult venipuncture?
A. 14 gauge
B. 16 gauge
C. 21 gauge
D. 30 gauge
Answer: C
Rationale: A 21-gauge needle is commonly used for routine blood collection in
adults.
9. What is the recommended angle of needle insertion for venipuncture?
A. 5 degrees
B. 15–30 degrees
C. 45–60 degrees
D. 90 degrees
Answer: B
Rationale: A 15–30 degree angle allows proper vein entry while minimizing
trauma.
10. Which tube is commonly used for complete blood count (CBC) testing?
A. Lavender
B. Gray
C. Blue
D. Yellow
Answer: A
Rationale: Lavender-top tubes contain EDTA and are commonly used for
hematology tests.
11. What additive is found in a lavender-top tube?
A. Sodium citrate
B. Heparin
C. EDTA
D. Fluoride
