TEST BANK PHLEBOTOMY SIMPLIFIED 3RD EDITION
GARZA QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2026|INSTANT
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1.
What is the primary role of a phlebotomist?
A. Diagnose diseases
B. Collect blood specimens
C. Prescribe medication
D. Interpret lab results
Rationale: Phlebotomists are trained specifically to obtain
blood samples, not diagnose or treat conditions.
Correct answer: B
2.
Which vein is most commonly used for venipuncture?
A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Femoral vein
Rationale: The median cubital vein is large, stable, and less
painful for patients.
Correct answer: C
,3.
What is the first step before performing venipuncture?
A. Apply tourniquet
B. Label tubes
C. Identify patient
D. Collect sample
Rationale: Proper patient identification prevents medical
errors.
Correct answer: C
4.
Which additive prevents blood clotting by binding calcium?
A. Sodium citrate
B. EDTA
C. Heparin
D. Fluoride
Rationale: EDTA chelates calcium ions preventing coagulation.
Correct answer: B
5.
What is the correct angle for venipuncture?
A. 5–10°
B. 15–30°
,C. 45–60°
D. 90°
Rationale: Standard venipuncture angle is 15–30° for proper
entry.
Correct answer: B
6–100 (Condensed but complete exam set)
6.
Which action prevents hemolysis?
A. Shaking tubes vigorously
B. Gentle inversion of tubes
C. Delaying sample transport
D. Using small needles only
Rationale: Gentle inversion preserves RBC integrity.
Correct answer: B
7.
What color tube contains EDTA?
A. Red
B. Blue
C. Lavender
D. Green
, Rationale: Lavender tops are used for hematology testing.
Correct answer: C
8.
What is the purpose of a tourniquet?
A. Increase blood pressure
B. Dilate veins
C. Stop blood flow
D. Sterilize site
Rationale: It restricts venous return making veins more visible.
Correct answer: B
9.
How long should a tourniquet be applied?
A. 5 minutes
B. 10 minutes
C. 1 minute or less
D. 15 minutes
Rationale: Prolonged application alters lab results.
Correct answer: C
10.
Which precaution reduces infection risk?
A. Reusing needles
GARZA QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2026|INSTANT
DOWNLOAD PDF
1.
What is the primary role of a phlebotomist?
A. Diagnose diseases
B. Collect blood specimens
C. Prescribe medication
D. Interpret lab results
Rationale: Phlebotomists are trained specifically to obtain
blood samples, not diagnose or treat conditions.
Correct answer: B
2.
Which vein is most commonly used for venipuncture?
A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Femoral vein
Rationale: The median cubital vein is large, stable, and less
painful for patients.
Correct answer: C
,3.
What is the first step before performing venipuncture?
A. Apply tourniquet
B. Label tubes
C. Identify patient
D. Collect sample
Rationale: Proper patient identification prevents medical
errors.
Correct answer: C
4.
Which additive prevents blood clotting by binding calcium?
A. Sodium citrate
B. EDTA
C. Heparin
D. Fluoride
Rationale: EDTA chelates calcium ions preventing coagulation.
Correct answer: B
5.
What is the correct angle for venipuncture?
A. 5–10°
B. 15–30°
,C. 45–60°
D. 90°
Rationale: Standard venipuncture angle is 15–30° for proper
entry.
Correct answer: B
6–100 (Condensed but complete exam set)
6.
Which action prevents hemolysis?
A. Shaking tubes vigorously
B. Gentle inversion of tubes
C. Delaying sample transport
D. Using small needles only
Rationale: Gentle inversion preserves RBC integrity.
Correct answer: B
7.
What color tube contains EDTA?
A. Red
B. Blue
C. Lavender
D. Green
, Rationale: Lavender tops are used for hematology testing.
Correct answer: C
8.
What is the purpose of a tourniquet?
A. Increase blood pressure
B. Dilate veins
C. Stop blood flow
D. Sterilize site
Rationale: It restricts venous return making veins more visible.
Correct answer: B
9.
How long should a tourniquet be applied?
A. 5 minutes
B. 10 minutes
C. 1 minute or less
D. 15 minutes
Rationale: Prolonged application alters lab results.
Correct answer: C
10.
Which precaution reduces infection risk?
A. Reusing needles
