NHCO EXAM LATEST 2025 COMPLETE
QUESTIONS AND VERIFIED CORRECT
ANSWERS GRADED A+
◉Why is it important for a phlebotomist to invert anticoagulant tubes?
a. To prevent a pH imbalance
b. To prevent hemolysis
c. To ensure proper mixing of blood and additive
d. To prevent hemoconcentration Answer: c. To ensure proper mixing
of blood and additive
◉Which of the following protects a patient's information?
a. OSHA
b. HIPPA
c. The Joint Commission
d. AAHSA Answer: b. HIPPA
,◉Which of the following needle sizes is NOT used for laboratory assays
but for collection of donor units of blood?
a. 18-gauge
b. 23-gague
c. 21-gague
d. 22-gague Answer: a. 18-gauge
◉How many minutes within collection of a urine sample should the
phlebotomist take the temperature of the specimen?
a. Within 10 minutes
b. Within 45 minutes
c. Within 30 seconds
d. Within 4 minutes Answer: d. Within 4 minutes
◉Quality control checklists ensure machines are inspected for
compliance at time intervals specific to the equipment and ________.
a. Clinical application
b. Chemical measurement
c. Expiration date
d. Stock rotation Answer: a. Clinical application
,◉Which of the following actions will most likely prevent a needle stick
injury?
a. Having a nurse or other healthcare team member dispose of used
needles for the phlebotomist
b. Replacing sharps containers when they have reached their fill line
c. Recapping every needle prior to discarding it in the sharps container
d. Wearing rubber gloves during venipuncture Answer: b. Replacing
sharps containers when they have reached their fill line
◉Which of the following pieces of information need to be on a
laboratory requisition form before a phlebotomist should proceed with
obtaining a blood specimen?
a. The patient's status as an organ donor
b. A specimen identification code
c. A laboratory's CLIA number
d. The patient's emergency contact Answer: b. A specimen
identification code
◉A patient is listening to a phlebotomist explain the venipuncture
process before initiating the blood draw. The patient communicates their
, understanding but seems hesitant and confused. How should the
phlebotomist handle the situation?
a. The phlebotomist should surmise that the patient has heard enough
information and get ready to draw the patient's blood.
b. The phlebotomist should leave the room and ask for another doctor or
nurse to explain the procedure.
c. The phlebotomist should repeat the same explanation in a slower
voice.
d. The phlebotomist should find another way to phrase the explanation
and invite the patient to ask any clarifying questions. Answer: d. The
phlebotomist should find another way to phrase the explanation and
invite the patient to ask any clarifying questions.
◉The additive in a Pink Top Tube used in blood banking is which of the
following?
a. Sodium polyanethole sulfonate (SPS)
b. Sodium heparin
c. Potassium ethylenediaminetetraacetic acid (EDTA)
d. Acid citrate dextrose (ACD) Answer: c. Potassium
ethylenediaminetetraacetic acid (EDTA)
◉If a patient verbally or physically refuses a venipuncture procedure,
the phlebotomist should do which of the following?
QUESTIONS AND VERIFIED CORRECT
ANSWERS GRADED A+
◉Why is it important for a phlebotomist to invert anticoagulant tubes?
a. To prevent a pH imbalance
b. To prevent hemolysis
c. To ensure proper mixing of blood and additive
d. To prevent hemoconcentration Answer: c. To ensure proper mixing
of blood and additive
◉Which of the following protects a patient's information?
a. OSHA
b. HIPPA
c. The Joint Commission
d. AAHSA Answer: b. HIPPA
,◉Which of the following needle sizes is NOT used for laboratory assays
but for collection of donor units of blood?
a. 18-gauge
b. 23-gague
c. 21-gague
d. 22-gague Answer: a. 18-gauge
◉How many minutes within collection of a urine sample should the
phlebotomist take the temperature of the specimen?
a. Within 10 minutes
b. Within 45 minutes
c. Within 30 seconds
d. Within 4 minutes Answer: d. Within 4 minutes
◉Quality control checklists ensure machines are inspected for
compliance at time intervals specific to the equipment and ________.
a. Clinical application
b. Chemical measurement
c. Expiration date
d. Stock rotation Answer: a. Clinical application
,◉Which of the following actions will most likely prevent a needle stick
injury?
a. Having a nurse or other healthcare team member dispose of used
needles for the phlebotomist
b. Replacing sharps containers when they have reached their fill line
c. Recapping every needle prior to discarding it in the sharps container
d. Wearing rubber gloves during venipuncture Answer: b. Replacing
sharps containers when they have reached their fill line
◉Which of the following pieces of information need to be on a
laboratory requisition form before a phlebotomist should proceed with
obtaining a blood specimen?
a. The patient's status as an organ donor
b. A specimen identification code
c. A laboratory's CLIA number
d. The patient's emergency contact Answer: b. A specimen
identification code
◉A patient is listening to a phlebotomist explain the venipuncture
process before initiating the blood draw. The patient communicates their
, understanding but seems hesitant and confused. How should the
phlebotomist handle the situation?
a. The phlebotomist should surmise that the patient has heard enough
information and get ready to draw the patient's blood.
b. The phlebotomist should leave the room and ask for another doctor or
nurse to explain the procedure.
c. The phlebotomist should repeat the same explanation in a slower
voice.
d. The phlebotomist should find another way to phrase the explanation
and invite the patient to ask any clarifying questions. Answer: d. The
phlebotomist should find another way to phrase the explanation and
invite the patient to ask any clarifying questions.
◉The additive in a Pink Top Tube used in blood banking is which of the
following?
a. Sodium polyanethole sulfonate (SPS)
b. Sodium heparin
c. Potassium ethylenediaminetetraacetic acid (EDTA)
d. Acid citrate dextrose (ACD) Answer: c. Potassium
ethylenediaminetetraacetic acid (EDTA)
◉If a patient verbally or physically refuses a venipuncture procedure,
the phlebotomist should do which of the following?
