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Phlebotomy Exam Simulation Flashcards

8 cards from real Phlebotomy Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. A physician orders a prothrombin time (PT/INR). Which tube is collected FIRST if no other tubes are being drawn?

    Answer: Light blue top (sodium citrate)

    Sodium citrate tubes for coagulation tests must be the first tube collected (after a discard tube in some protocols) to avoid EDTA or additive contamination that would interfere with coagulation testing.

  2. During venipuncture, the needle bevel should be positioned:

    Answer: Upward (facing away from the skin)

    The needle bevel must be up (facing the ceiling) so the sharp cutting edge enters the vein cleanly and blood enters the needle without the bevel edge cutting the vessel wall.

  3. A patient identifies themselves, but the name on the tube label doesn't match the requisition. The phlebotomist should:

    Answer: Stop the procedure and resolve the discrepancy before drawing blood

    Any patient identification discrepancy must be resolved BEFORE drawing blood; collecting on a mislabeled specimen is a serious patient safety error that can cause wrong-patient results.

  4. Which of the following represents the CORRECT order of draw for a patient requiring a CBC, BMP, and INR?

    Answer: Light blue → Gold → Lavender

    The correct order is light blue (sodium citrate/INR) first, then gold (SST/BMP) second, then lavender (EDTA/CBC) last, following the established CLSI order of draw.

  5. A tourniquet should be released:

    Answer: As soon as blood begins flowing into the collection tube

    The tourniquet should be released as soon as blood flow is established (within 1 minute of application) to prevent hemoconcentration and altered test results from prolonged venous occlusion.

  6. Which personal protective equipment (PPE) is REQUIRED for routine venipuncture?

    Answer: Gloves only

    OSHA's Bloodborne Pathogens Standard requires gloves for all routine venipuncture; additional PPE (mask, gown, face shield) is added based on the splash/exposure risk of the specific procedure.

  7. A phlebotomist experiences a needlestick injury after blood collection. What is the FIRST action to take?

    Answer: Immediately wash the wound with soap and water and report the exposure per facility protocol

    Immediate wound washing with soap and water is the first response to needlestick injury, followed by immediate reporting per facility exposure control plan.

  8. Which blood tube additive is used to inhibit glycolysis and preserve glucose concentration in the specimen?

    Answer: Sodium fluoride

    Sodium fluoride inhibits the enzyme enolase in the glycolytic pathway, preventing cells from metabolizing glucose after collection and preserving the glucose concentration in the specimen.