Nha Phlebotomy Exam

NHA PHLEBOTOMY EXAM
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks



Question 1:
A phlebotomy technician should identify that which of the following additives is used to prevent the
breakdown of glucose?
A) EDTA
B) Sodium citrate
C) Sodium fluoride
D) Heparin
Answer: C
EXPLANATION: Sodium fluoride inhibits glycolysis, preserving glucose levels in the sample for accurate
testing.



Question 2:
A phlebotomy technician in an outpatient setting is identifying a patient before performing a
venipuncture procedure. To confirm the patient's identity, which of the following questions should the
technician ask?
A) “Are you John Doe?”
B) “Can you point to your name on this form?”
C) “Would you please state and spell your full name and provide your date of birth?”
D) “What is your doctor’s name?”
Answer: C
EXPLANATION: Verbal confirmation with full name and date of birth ensures accurate patient
identification and avoids specimen mislabeling.



Question 3:
Which of the following is a potential consequence of a phlebotomy technician mislabeling a blood bank
specimen?
A) Delayed testing
B) Contaminated specimen
C) A transfusion reaction
D) Hemoconcentration
Answer: C

,EXPLANATION: Mislabeling can lead to incompatible blood transfusions, which may cause serious or
fatal transfusion reactions.



Question 4:
A phlebotomy technician should invert anticoagulant tubes to prevent which of the following
complications?
A) Hemolysis
B) Clotting
C) Contamination
D) Lipemia
Answer: B
EXPLANATION: Proper inversion ensures that the anticoagulant mixes thoroughly with blood,
preventing clot formation.



Question 5:
According to OSHA standards, which of the following vaccines must employers offer to their
phlebotomist at no cost?
A) Influenza
B) Tetanus
C) Hepatitis B
D) Hepatitis A
Answer: C
EXPLANATION: OSHA requires employers to offer the Hepatitis B vaccine to employees at risk of
exposure to bloodborne pathogens.



Question 6:
During a routine venipuncture, a phlebotomy technician notices that a patient is becoming pale and
diaphoretic. The technician should identify that the patient is at risk for which of the following
conditions?
A) Hematoma
B) Hemolysis
C) Syncope
D) Seizure
Answer: C
EXPLANATION: Pale, sweaty appearance may signal a pending fainting episode; technician should stop
procedure and ensure safety.



Question 7:
Which of the following tube selections indicates the correct order of draw for venipuncture?
A) Lavender, green, gray

, B) Gray, green, lavender
C) Green, lavender, gray
D) Lavender, gray, green
Answer: C
EXPLANATION: The order of draw prevents cross-contamination: Green (heparin), Lavender (EDTA),
then Gray (fluoride).



Question 8:
What device should be used to collect blood from a patient’s hand with difficult veins?
A) Butterfly needle
B) Tourniquet
C) Hand immobilizer
D) Straight needle
Answer: C
EXPLANATION: A hand immobilizer stabilizes the site, reducing movement and improving access to
veins.



Question 9:
After cleansing the puncture site, what should the technician do next during a venipuncture using an
evacuated tube system?
A) Insert the needle
B) Tie the tourniquet
C) Ask the patient to make a fist
D) Select the tube
Answer: C
EXPLANATION: Making a fist makes veins more prominent, aiding in successful insertion.



Question 10:
Which of the following actions can result in a grossly hemolyzed specimen?
A) Using alcohol to cleanse the site
B) Using an incorrect needle gauge
C) Inverting the tube slowly
D) Choosing the wrong site
Answer: B
EXPLANATION: Using too small of a needle gauge can damage red blood cells, leading to hemolysis.



Question 11:
Which of the following steps is in the correct venipuncture sequence?
A) Cleanse, assess, insert
B) Insert, cleanse, assess