Phlebotomy Practical Biochemistry Quizzes
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Questions and Answers

What is the appropriate angle to insert the Vacutainer needle during venipuncture?

  • 45 degrees
  • 30 degrees
  • 15 degrees (correct)
  • 60 degrees

    • Which gauge of needle is recommended to prevent hemolysis during blood collection?

  • 16 gauge
  • 18 gauge
  • 22 gauge
  • 20 gauge (correct)

    • What should be done to ensure proper mixing of anticoagulants or preservatives in blood collection tubes?

  • Invert the tubes upside down 5-10 times (correct)
  • Shake the tubes vigorously
  • Do not mix the tubes after blood collection
  • Gently rotate the tubes upside down 2-3 times

    • Where should a tourniquet be applied when evaluating vein selection for venipuncture?

    <p>2-3 inches above the elbow</p> Signup and view all the answers

    What is the preferable method to identify suitable veins for venipuncture?

    <p>Touch</p> Signup and view all the answers

    What does the term 'thrombophlebitis' refer to?

    <p>The inflammation of a vein with blood clot formation</p> Signup and view all the answers

    What is the purpose of a 'vacutainer' in phlebotomy?

    <p>To separate the liquid and solid portions of the blood</p> Signup and view all the answers

    What is the function of a 'butterfly' in phlebotomy?

    <p>To draw blood using a smaller needle with wings on each side</p> Signup and view all the answers

    What does the term 'centrifuge' refer to in the context of phlebotomy?

    <p>A device used in the lab to spin blood and separate the liquid and solid portions of the blood</p> Signup and view all the answers

    What is 'hemolysis' in the context of phlebotomy?

    <p>The breaking of blood cells</p> Signup and view all the answers

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