Certified Phlebotomy Technicial |Bonus
NHA Exam Prep 2025| Updated
Questions and Answers| A level
What action should a phlebotomy technician take if a patient experiences syncope during a blood
draw?
Immediately remove the needle, apply pressure, and monitor the patient.
What is the primary reason for a phlebotomist to avoid using the median cubital vein in certain
patients?
Risk of nerve damage or complications due to the vein’s proximity to structures like the
brachial artery.
How long can a tourniquet be left on a patient’s arm during venipuncture before it needs to be
removed?
No longer than 1 minute to avoid hemoconcentration.
What is the most common cause of hemolysis during venipuncture?
Using a needle that is too small or vigorously shaking the blood tubes.
Which type of test requires a strict chain of custody protocol?
Drug screening tests require a strict chain of custody.
1
,What should a phlebotomist do if they accidentally puncture an artery during venipuncture?
Apply pressure to the site and inform the supervisor immediately.
What is the proper angle of needle insertion for a venipuncture?
Between 15 and 30 degrees.
Why is it important to invert blood collection tubes containing additives after drawing?
To mix the blood with the additive and prevent clotting or contamination.
What is the best method for collecting a blood specimen from a patient with difficult veins?
Use a butterfly needle and syringe or perform capillary puncture.
What precaution should be taken when performing venipuncture on a patient who has had a
mastectomy?
Avoid drawing from the arm on the side of the mastectomy to prevent lymphostasis.
What is the proper procedure if a phlebotomist encounters a vein with a hematoma during a
blood draw?
Avoid the area with the hematoma and select a different site for the draw.
What test requires blood to be kept warm during transportation?
2
, Cold agglutinin tests require the sample to be kept warm.
When collecting a blood sample for a blood alcohol level test, what should the phlebotomist
avoid using?
Do not use alcohol-based disinfectants to clean the puncture site.
What is the correct procedure for collecting a blood specimen from a pediatric patient?
Use a smaller needle (e.g., 23-gauge) and limit the amount of blood collected to avoid
iatrogenic anemia.
What is the proper handling procedure for a sample collected for lactic acid testing?
The sample must be chilled immediately after collection.
What is the order of draw when performing venipuncture?
Blood cultures, light blue, red or gold, green, lavender, and gray.
Why is it important to avoid prolonged tourniquet application during venipuncture?
Prolonged application can cause hemoconcentration and false test results.
What should be done if a phlebotomist notices a patient’s vein rolling during a venipuncture?
Re-anchor the vein and attempt to access it without digging or multiple re-insertions.
3
NHA Exam Prep 2025| Updated
Questions and Answers| A level
What action should a phlebotomy technician take if a patient experiences syncope during a blood
draw?
Immediately remove the needle, apply pressure, and monitor the patient.
What is the primary reason for a phlebotomist to avoid using the median cubital vein in certain
patients?
Risk of nerve damage or complications due to the vein’s proximity to structures like the
brachial artery.
How long can a tourniquet be left on a patient’s arm during venipuncture before it needs to be
removed?
No longer than 1 minute to avoid hemoconcentration.
What is the most common cause of hemolysis during venipuncture?
Using a needle that is too small or vigorously shaking the blood tubes.
Which type of test requires a strict chain of custody protocol?
Drug screening tests require a strict chain of custody.
1
,What should a phlebotomist do if they accidentally puncture an artery during venipuncture?
Apply pressure to the site and inform the supervisor immediately.
What is the proper angle of needle insertion for a venipuncture?
Between 15 and 30 degrees.
Why is it important to invert blood collection tubes containing additives after drawing?
To mix the blood with the additive and prevent clotting or contamination.
What is the best method for collecting a blood specimen from a patient with difficult veins?
Use a butterfly needle and syringe or perform capillary puncture.
What precaution should be taken when performing venipuncture on a patient who has had a
mastectomy?
Avoid drawing from the arm on the side of the mastectomy to prevent lymphostasis.
What is the proper procedure if a phlebotomist encounters a vein with a hematoma during a
blood draw?
Avoid the area with the hematoma and select a different site for the draw.
What test requires blood to be kept warm during transportation?
2
, Cold agglutinin tests require the sample to be kept warm.
When collecting a blood sample for a blood alcohol level test, what should the phlebotomist
avoid using?
Do not use alcohol-based disinfectants to clean the puncture site.
What is the correct procedure for collecting a blood specimen from a pediatric patient?
Use a smaller needle (e.g., 23-gauge) and limit the amount of blood collected to avoid
iatrogenic anemia.
What is the proper handling procedure for a sample collected for lactic acid testing?
The sample must be chilled immediately after collection.
What is the order of draw when performing venipuncture?
Blood cultures, light blue, red or gold, green, lavender, and gray.
Why is it important to avoid prolonged tourniquet application during venipuncture?
Prolonged application can cause hemoconcentration and false test results.
What should be done if a phlebotomist notices a patient’s vein rolling during a venipuncture?
Re-anchor the vein and attempt to access it without digging or multiple re-insertions.
3
