NHA PHLEBOTOMY EXAM NEWEST 2026 ACTUAL EXAM 230 QUESTIONS AND CORRECT
DETAILED ANSWERS/NEWEST UPDATE
Question 1
Which vein is considered the first choice and most preferred site for a routine venipuncture?
A) Cephalic vein
B) Basilic vein
C) Median cubital vein
D) Dorsalis pedis
E) Radial vein
Correct Answer: C) Median cubital vein
Rationale: The median cubital vein is the most preferred site for venipuncture because it is
typically large, well-anchored, and has the lowest risk of hitting nerves or arteries during
the procedure.
Question 2
Prior to performing a capillary (dermal) puncture on a patient, which of the following is the most
important factor for the technician to select?
A) The gauge of the needle
B) The volume of the tube
C) The lancet size
D) The type of tourniquet
E) The povidone-iodine solution
Correct Answer: C) The lancet size
Rationale: Selecting the correct lancet size is critical for capillary punctures to ensure
adequate blood flow without causing bone injury, especially in infants where the depth
must not exceed 2 mm.
Question 3
When collecting blood cultures from an adult patient, what is the recommended volume of blood
that should be collected per bottle?
A) 1-3 mL
B) 5 mL
C) 8-10 mL
D) 15-20 mL
E) 30 mL
Correct Answer: C) 8-10 mL per bottle
Rationale: Collecting 8-10 mL of blood per bottle for adult blood cultures ensures there is a
sufficient concentration of microorganisms to be detected by the laboratory equipment.
Question 4
Which of the following visual characteristics is used to determine if a peripheral blood smear has
been performed correctly?
, 2
A) A jagged edge
B) A thick, opaque center
) A feathered edge
D) A perfectly circular drop
E) A dark purple hue
Correct Answer: C) Feather edge
Rationale: A correctly performed peripheral blood smear should have a "feathered edge,"
which allows for a single layer of cells to be viewed clearly under a microscope for accurate
analysis.
Question 5
Which group of tests traditionally requires the patient to be in a fasting state for 8 to 12 hours?
A) CBC and PTT
B) HIV and Hepatitis
C) Glucose, Cholesterol, and Triglycerides
D) Blood alcohol and Blood cultures
E) Pregnancy and Blood type
Correct Answer: C) Glucose, Cholesterol, and Triglycerides
Rationale: Fasting is required for glucose and lipid panels (cholesterol/triglycerides) because
food intake can significantly alter these levels, leading to inaccurate diagnostic results.
Question 6
What is the first action a phlebotomy technician should take upon entering a patient's room?
A) Wash hands and put on gloves
B) Introduce yourself and explain the procedure
C) Identify the patient using their room number
D) Apply the tourniquet to find a vein
E) Label the tubes immediately
Correct Answer: B) introduce yourself and explain procedure
Rationale: Introducing yourself and explaining the procedure is the first step in establishing
rapport and ensures the patient understands what is about to happen, which is a key part
of obtaining informed consent.
Question 7
What two factors are most important when determining whether a child should have a capillary
collection via heel stick or finger stick?
A) Weight and height
B) Hair color and eye color
C) Age and developmental factors
D) Gender and race
E) Fasting status and hydration
, 3
Correct Answer: C) Age & developmental factors
Rationale: Age and developmental milestones (such as whether an infant is walking or their
physical size) determine the appropriate site for capillary puncture to avoid injury to bones
or nerves.
Question 8
Which of the following procedures is used to collect cerebrospinal fluid (CSF), a non-blood
specimen?
A) Venipuncture
B) Dermal puncture
C) Lumbar tap
D) Arterial puncture
E) Clean catch midstream
Correct Answer: C) Lumbar tap
Rationale: A lumbar tap (spinal tap) is the specific medical procedure used to collect
cerebrospinal fluid from the subarachnoid space for diagnostic testing.
Question 9
What is the appropriate antiseptic for cleansing a site prior to a routine skin (capillary) puncture?
A) 10% bleach
B) 95% ethyl alcohol
C) 70% isopropyl alcohol
D) Povidone-iodine
E) Chlorhexidine gluconate
Correct Answer: C) 70% isopropyl alcohol
Rationale: 70% isopropyl alcohol is the standard antiseptic used for routine skin punctures
because it effectively reduces surface bacteria without interfering with most laboratory
tests.
Question 10
If a patient has an IV running in their arm, where is the preferred site to draw a blood specimen?
A) Above the IV site
B) Directly into the IV line
C) Distal (below) the IV site
D) In the opposite arm's basilic vein
E) From the patient's foot
Correct Answer: C) Going Distal
Rationale: Drawing blood distal to an IV site prevents the specimen from being
contaminated by the IV fluids, which would result in inaccurate test values.
DETAILED ANSWERS/NEWEST UPDATE
Question 1
Which vein is considered the first choice and most preferred site for a routine venipuncture?
A) Cephalic vein
B) Basilic vein
C) Median cubital vein
D) Dorsalis pedis
E) Radial vein
Correct Answer: C) Median cubital vein
Rationale: The median cubital vein is the most preferred site for venipuncture because it is
typically large, well-anchored, and has the lowest risk of hitting nerves or arteries during
the procedure.
Question 2
Prior to performing a capillary (dermal) puncture on a patient, which of the following is the most
important factor for the technician to select?
A) The gauge of the needle
B) The volume of the tube
C) The lancet size
D) The type of tourniquet
E) The povidone-iodine solution
Correct Answer: C) The lancet size
Rationale: Selecting the correct lancet size is critical for capillary punctures to ensure
adequate blood flow without causing bone injury, especially in infants where the depth
must not exceed 2 mm.
Question 3
When collecting blood cultures from an adult patient, what is the recommended volume of blood
that should be collected per bottle?
A) 1-3 mL
B) 5 mL
C) 8-10 mL
D) 15-20 mL
E) 30 mL
Correct Answer: C) 8-10 mL per bottle
Rationale: Collecting 8-10 mL of blood per bottle for adult blood cultures ensures there is a
sufficient concentration of microorganisms to be detected by the laboratory equipment.
Question 4
Which of the following visual characteristics is used to determine if a peripheral blood smear has
been performed correctly?
, 2
A) A jagged edge
B) A thick, opaque center
) A feathered edge
D) A perfectly circular drop
E) A dark purple hue
Correct Answer: C) Feather edge
Rationale: A correctly performed peripheral blood smear should have a "feathered edge,"
which allows for a single layer of cells to be viewed clearly under a microscope for accurate
analysis.
Question 5
Which group of tests traditionally requires the patient to be in a fasting state for 8 to 12 hours?
A) CBC and PTT
B) HIV and Hepatitis
C) Glucose, Cholesterol, and Triglycerides
D) Blood alcohol and Blood cultures
E) Pregnancy and Blood type
Correct Answer: C) Glucose, Cholesterol, and Triglycerides
Rationale: Fasting is required for glucose and lipid panels (cholesterol/triglycerides) because
food intake can significantly alter these levels, leading to inaccurate diagnostic results.
Question 6
What is the first action a phlebotomy technician should take upon entering a patient's room?
A) Wash hands and put on gloves
B) Introduce yourself and explain the procedure
C) Identify the patient using their room number
D) Apply the tourniquet to find a vein
E) Label the tubes immediately
Correct Answer: B) introduce yourself and explain procedure
Rationale: Introducing yourself and explaining the procedure is the first step in establishing
rapport and ensures the patient understands what is about to happen, which is a key part
of obtaining informed consent.
Question 7
What two factors are most important when determining whether a child should have a capillary
collection via heel stick or finger stick?
A) Weight and height
B) Hair color and eye color
C) Age and developmental factors
D) Gender and race
E) Fasting status and hydration
, 3
Correct Answer: C) Age & developmental factors
Rationale: Age and developmental milestones (such as whether an infant is walking or their
physical size) determine the appropriate site for capillary puncture to avoid injury to bones
or nerves.
Question 8
Which of the following procedures is used to collect cerebrospinal fluid (CSF), a non-blood
specimen?
A) Venipuncture
B) Dermal puncture
C) Lumbar tap
D) Arterial puncture
E) Clean catch midstream
Correct Answer: C) Lumbar tap
Rationale: A lumbar tap (spinal tap) is the specific medical procedure used to collect
cerebrospinal fluid from the subarachnoid space for diagnostic testing.
Question 9
What is the appropriate antiseptic for cleansing a site prior to a routine skin (capillary) puncture?
A) 10% bleach
B) 95% ethyl alcohol
C) 70% isopropyl alcohol
D) Povidone-iodine
E) Chlorhexidine gluconate
Correct Answer: C) 70% isopropyl alcohol
Rationale: 70% isopropyl alcohol is the standard antiseptic used for routine skin punctures
because it effectively reduces surface bacteria without interfering with most laboratory
tests.
Question 10
If a patient has an IV running in their arm, where is the preferred site to draw a blood specimen?
A) Above the IV site
B) Directly into the IV line
C) Distal (below) the IV site
D) In the opposite arm's basilic vein
E) From the patient's foot
Correct Answer: C) Going Distal
Rationale: Drawing blood distal to an IV site prevents the specimen from being
contaminated by the IV fluids, which would result in inaccurate test values.
