Phlebotomy MCQ Quiz With Answers

Clinically Reviewed by Nicolette Natale
Nicolette Natale, DO (Medicine) |
Physician and Medical Writer
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Nicolette Natale is a dedicated healthcare professional with a diverse background in medicine and education. She holds a Doctor of Osteopathic Medicine degree from Nova Southeastern University, as well as Bachelor's degrees in English Literature and Psychology from the University of Miami. With over 6 years of experience, Nicolette is a physician, research coordinator, and medical writer who is committed to advancing medical research and providing quality patient care.
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  • 1/11 Questions

    Lavender topped collection tubes are used for ____ type of tests. 

    • Malabsorption
    • Hematology
    • Gastric fluid analysis
    • None of the above
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About This Quiz


Hello and welcome to this ultimate Phlebotomy MCQ quiz with answers. We have designed this quiz to test out how skilled you are as a phlebotomist and whether your patients are in good hands. As we know, taking blood from a patient for testing or donating purposes is no easy task and someone with little knowledge about it can harm a patient. Let's see if you know everything about wherein the body is best suited to draw blood from.

Phlebotomy MCQ Quiz With Answers - Quiz

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  • 2. 

    What color topped tube would you draw blood sugar in?

    • Black

    • Grey

    • White

    • Red

    Correct Answer
    A. Grey
    Explanation
    Grey topped tubes are used for drawing blood samples for glucose testing. The color of the tube indicates the type of additive or anticoagulant present in the tube, which is necessary for accurate blood sugar testing.

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  • 3. 

    Light blue-top tubes contain sodium citrate and are used to collect blood specimens for:

    • CBCs

    • Blood cultures

    • Coagulation studies (PT/INR)

    • Blood sugars

    Correct Answer
    A. Coagulation studies (PT/INR)
    Explanation
    Light blue-top tubes contain sodium citrate, which is an anticoagulant that prevents blood from clotting. This makes them suitable for collecting blood specimens for coagulation studies, such as the PT (prothrombin time) and INR (international normalized ratio) tests. These tests measure the time it takes for blood to clot and are used to assess a patient's blood clotting ability and monitor the effectiveness of anticoagulant therapy. The sodium citrate in the tube binds to calcium ions in the blood, preventing clot formation and preserving the blood sample for accurate coagulation testing.

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  • 4. 

    Warming the antecubital space or hand prior to puncture does which of the following?

    • Increases blood flow

    • Increases heart beat

    • Reduces blood flow

    • None of the above

    Correct Answer
    A. Increases blood flow
    Explanation
    Warming the antecubital space or hand prior to puncture increases blood flow. When the area is warmed, the blood vessels dilate, allowing more blood to flow through them. This increased blood flow can make it easier to find a suitable vein for puncture and can also improve the accuracy of blood tests by ensuring an adequate sample size.

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  • 5. 

    Which phase of laboratory workflow is phlebotomy in?

    • Analytical

    • Pre-analytical

    • Post-analytical

    • Follow-up

    Correct Answer
    A. Pre-analytical
    Explanation
    Phlebotomy is the process of drawing blood from a patient for laboratory testing. This procedure takes place before any analysis or testing is done on the blood sample. Therefore, phlebotomy falls under the pre-analytical phase of the laboratory workflow, which involves all the steps taken before the actual testing of the sample begins.

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  • 6. 

    Gray topped tubes contain a chemical that

    • Stops the action of insulin on glucose

    • Prevents the blood from clotting

    • Clots the blood faster

    • Increases blood pressure

    Correct Answer
    A. Stops the action of insulin on glucose
    Explanation
    Gray topped tubes contain a chemical that stops the action of insulin on glucose. This means that when blood is collected in a gray topped tube, the chemical present in the tube inhibits the activity of insulin, a hormone responsible for regulating blood sugar levels. As a result, the glucose in the blood is not metabolized properly, leading to higher blood sugar levels. This information is important for medical professionals to accurately assess a patient's blood glucose levels and diagnose any potential glucose-related disorders.

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  • 7. 

    If a tourniquet is applied for longer than 3 minutes, which of the following analyte results will most likely become falsely elevated?

    • Glucose

    • Potassium

    • Protein

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    When a tourniquet is applied for longer than 3 minutes, it can cause stasis and ischemia in the limb, leading to changes in blood flow and analyte levels. Glucose levels may become falsely elevated due to increased glycolysis in the ischemic tissue. Potassium levels may also increase due to the release of potassium from damaged cells. Protein levels may become elevated due to increased vascular permeability and leakage of proteins into the blood. Therefore, all of the above analyte results are likely to become falsely elevated when a tourniquet is applied for longer than 3 minutes.

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  • 8. 

    What color topped tube would you use to draw a BUN and Creatine in?

    • Grey

    • Blue

    • Tiger topped 

    • None of the above

    Correct Answer
    A. Tiger topped 
    Explanation
    The tiger topped tube would be used to draw a BUN and Creatine. The color of the tube is not specified in the question, so it can be assumed that the tiger topped tube is the correct choice.

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  • 9. 

    Which is the correct order for drawing blood?

    • Yellow, gray, lavender, tiger topped

    • Tiger topped, lavender, gray

    • Yellow, lavender, tiger

    • None of the above

    Correct Answer
    A. Tiger topped, lavender, gray
    Explanation
    The correct order for drawing blood is tiger topped, lavender, gray. This is because tiger topped tubes are used for serum separation, lavender tubes are used for hematology tests, and gray tubes are used for glucose testing.

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  • 10. 

    Phlebotomy means

    • Cut into vessel

    • Vein

    • Arterial puncture

    • Study of blood drawing

    Correct Answer
    A. Cut into vessel
    Explanation
    Phlebotomy refers to the process of making an incision or puncture in a blood vessel in order to collect blood samples or perform medical procedures. This involves cutting into a vessel, typically a vein, to access the bloodstream. Therefore, the given answer "Cut into vessel" accurately describes the meaning of phlebotomy.

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  • 11. 

    What should you include on the label of a tube of blood?

    • Patient name and DOB

    • Date and time of draw

    • Your initials

    • Patient's residential address

    • Patient's residential address

    Correct Answer(s)
    A. Patient name and DOB
    A. Date and time of draw
    A. Your initials
    Explanation
    The label of a tube of blood should include the patient's name and date of birth, as this is crucial for accurate identification. Additionally, the date and time of draw should be included to track the timeline of the blood sample. Including your initials is important for traceability and accountability. However, including the patient's residential address twice is unnecessary and could potentially violate privacy regulations.

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Nicolette Natale |DO (Medicine) |
Physician and Medical Writer
Nicolette Natale is a dedicated healthcare professional with a diverse background in medicine and education. She holds a Doctor of Osteopathic Medicine degree from Nova Southeastern University, as well as Bachelor's degrees in English Literature and Psychology from the University of Miami. With over 6 years of experience, Nicolette is a physician, research coordinator, and medical writer who is committed to advancing medical research and providing quality patient care.

Quiz Review Timeline (Updated): Jul 16, 2024 +

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  • Current Version
  • Jul 16, 2024
    Quiz Edited by
    ProProfs Editorial Team

    Expert Reviewed by
    Nicolette Natale
  • Dec 07, 2011
    Quiz Created by
    Hshort
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