Phlebotomy Exam 2026 – 50 Confusing
Prep Questions | PASS First Try
Question one.
A patient suddenly feels faint during a blood draw. Which of the following is the phlebotomist
primary action?
A. Offer the patient a glass of water.
B. Continue the draw as quickly as possible.
C. Remove the tourniquet and needle immediately.
D. Ask the patient to lower their head between their knees.
Answer. C. Remove the tourniquet and needle immediately.
This question tests the correct response to a patient experiencing syncope or fainting. The
keyword is primary action which means the very first thing to do for patient safety. Removing the
tourniquet and needle is the top priority to prevent injury such as the needle moving and
damaging the patient's arm if they lose consciousness. For example, once the needle is safely
removed, the phlebotomist can then help position the patient to recover. The most important tip
to remember is safety first. Get the sharp out of the arm before anything else?
Question two.
Which of the following is the correct order of draw for a set of blood cultures, a coagulation tube,
and a hematology tube?
A. Coagulation, blood cultures, hematology.
B. Blood cultures, coagulation, hematology.
C. Hematology, blood cultures, coagulation.
D. Blood cultures, hematology, coagulation.
Answer. B. Blood cultures, coagulation, hematology.
This question tests knowledge of the order of draw which prevents additive crosscontamination.
The key is to recognize the tube types. Blood cultures are always first to maintain sterility
followed by the light blue top coagulation and then the lavender top hematology. Drawing in this
sequence ensures that additives from other tubes do not interfere with sensitive coagulation
,tests or contaminate sterile culture specimens. For instance, drawing the lavender tube before
the light blue tube could transfer EDTA and cause inaccurate clotting time results. Just
remember this rule. cultures first then light blue is true.
Question three,
What is the most common sight for a standard venopuncture on an adult?
A the basilic vein,
B the cephalic vein,
C the back of the hand.
D the median cubital vein.
Answer D. The median cubital vein.
This question is about basic anatomy for venopuncture site selection. The keyword most
common points to the preferred vein. The median cubital vein located in the anticubital fossa,
the bend of the elbow, is the best choice because it is large, well anchored, and generally
easiest to access with the lowest risk of injury. While other veins can be used, this one is
selected first whenever possible. A helpful way to think about it is that the median cubital is in
the middle, making it the central go to spot for a routine draw.
Question four.
When preparing a site for a blood culture collection, which of the following cleansing agents is
typically used?
A. Isopropyl alcohol only.
B. Povidonic iodine or chlorhexidine gluconate.
C. Sterile saline.
D. Hydrogen peroxide.
Answer B. Povidonic iodine or chlorhexidine gluconate.
This question focuses on the specific aseptic technique required for blood culture collection.
Blood cultures must be collected under sterile conditions to avoid contamination with skin
bacteria which could cause a false positive result. A more powerful antiseptic like chlorhexidine
gluconate is used to thoroughly disinfect the site after an initial cleaning with alcohol. For
example, the phlebotomist would first scrub the site with an alcohol pad and then follow with a
, chlorhexidine scrub in a circular motion. Remember, blood cultures demand a higher level of
cleanliness to ensure you are only growing bacteria from the patients blood, not their skin.
Question five.
A phlebotomist is required to collect a specimen for a blood alcohol level test. Which of the
following should be used to clean the site?
A. Isopropyl alcohol,
B. Ben benzylconium chloride,
C. Povidoni iodine,
D. Methanol.
Answer B. Ben benzylconium chloride.
This question tests knowledge of special collection procedures where standard supplies are
inappropriate. The key here is the blood alcohol level test as using an alcohol-based cleanser
can contaminate the sample and produce a falsely elevated result. An antiseptic that does not
contain alcohol such as benzalkonium chloride or povine iodine must be used instead. For
instance, cleaning the site with a typical alcohol prep pad could introduce enough alcohol to
affect the legal or medical accuracy of the test. Here's an easy tip. For an alcohol test, use a
non-alcohol cleaner.
Question six.
A tourniquet should not be left on a patient's arm for longer than
A. 30 seconds,
B 1 minute,
C 2 minutes.
D 3 minutes.
Answer B. 1 minute.
This question tests the standard of care for tourniquet application time. Leaving a tourniquet on
for longer than 1 minute can cause hemocentration which is a change in the ratio of cells to
plasma in the blood. This alteration can lead to inaccurate test results particularly for analytes
like potassium and proteins. For example, if a phlebotomist is having trouble finding a vein, they
should release the tourniquet after 1 minute, let the blood flow normalize for 2 minutes, and then
Prep Questions | PASS First Try
Question one.
A patient suddenly feels faint during a blood draw. Which of the following is the phlebotomist
primary action?
A. Offer the patient a glass of water.
B. Continue the draw as quickly as possible.
C. Remove the tourniquet and needle immediately.
D. Ask the patient to lower their head between their knees.
Answer. C. Remove the tourniquet and needle immediately.
This question tests the correct response to a patient experiencing syncope or fainting. The
keyword is primary action which means the very first thing to do for patient safety. Removing the
tourniquet and needle is the top priority to prevent injury such as the needle moving and
damaging the patient's arm if they lose consciousness. For example, once the needle is safely
removed, the phlebotomist can then help position the patient to recover. The most important tip
to remember is safety first. Get the sharp out of the arm before anything else?
Question two.
Which of the following is the correct order of draw for a set of blood cultures, a coagulation tube,
and a hematology tube?
A. Coagulation, blood cultures, hematology.
B. Blood cultures, coagulation, hematology.
C. Hematology, blood cultures, coagulation.
D. Blood cultures, hematology, coagulation.
Answer. B. Blood cultures, coagulation, hematology.
This question tests knowledge of the order of draw which prevents additive crosscontamination.
The key is to recognize the tube types. Blood cultures are always first to maintain sterility
followed by the light blue top coagulation and then the lavender top hematology. Drawing in this
sequence ensures that additives from other tubes do not interfere with sensitive coagulation
,tests or contaminate sterile culture specimens. For instance, drawing the lavender tube before
the light blue tube could transfer EDTA and cause inaccurate clotting time results. Just
remember this rule. cultures first then light blue is true.
Question three,
What is the most common sight for a standard venopuncture on an adult?
A the basilic vein,
B the cephalic vein,
C the back of the hand.
D the median cubital vein.
Answer D. The median cubital vein.
This question is about basic anatomy for venopuncture site selection. The keyword most
common points to the preferred vein. The median cubital vein located in the anticubital fossa,
the bend of the elbow, is the best choice because it is large, well anchored, and generally
easiest to access with the lowest risk of injury. While other veins can be used, this one is
selected first whenever possible. A helpful way to think about it is that the median cubital is in
the middle, making it the central go to spot for a routine draw.
Question four.
When preparing a site for a blood culture collection, which of the following cleansing agents is
typically used?
A. Isopropyl alcohol only.
B. Povidonic iodine or chlorhexidine gluconate.
C. Sterile saline.
D. Hydrogen peroxide.
Answer B. Povidonic iodine or chlorhexidine gluconate.
This question focuses on the specific aseptic technique required for blood culture collection.
Blood cultures must be collected under sterile conditions to avoid contamination with skin
bacteria which could cause a false positive result. A more powerful antiseptic like chlorhexidine
gluconate is used to thoroughly disinfect the site after an initial cleaning with alcohol. For
example, the phlebotomist would first scrub the site with an alcohol pad and then follow with a
, chlorhexidine scrub in a circular motion. Remember, blood cultures demand a higher level of
cleanliness to ensure you are only growing bacteria from the patients blood, not their skin.
Question five.
A phlebotomist is required to collect a specimen for a blood alcohol level test. Which of the
following should be used to clean the site?
A. Isopropyl alcohol,
B. Ben benzylconium chloride,
C. Povidoni iodine,
D. Methanol.
Answer B. Ben benzylconium chloride.
This question tests knowledge of special collection procedures where standard supplies are
inappropriate. The key here is the blood alcohol level test as using an alcohol-based cleanser
can contaminate the sample and produce a falsely elevated result. An antiseptic that does not
contain alcohol such as benzalkonium chloride or povine iodine must be used instead. For
instance, cleaning the site with a typical alcohol prep pad could introduce enough alcohol to
affect the legal or medical accuracy of the test. Here's an easy tip. For an alcohol test, use a
non-alcohol cleaner.
Question six.
A tourniquet should not be left on a patient's arm for longer than
A. 30 seconds,
B 1 minute,
C 2 minutes.
D 3 minutes.
Answer B. 1 minute.
This question tests the standard of care for tourniquet application time. Leaving a tourniquet on
for longer than 1 minute can cause hemocentration which is a change in the ratio of cells to
plasma in the blood. This alteration can lead to inaccurate test results particularly for analytes
like potassium and proteins. For example, if a phlebotomist is having trouble finding a vein, they
should release the tourniquet after 1 minute, let the blood flow normalize for 2 minutes, and then
