Human Physiology Lab 10: Hemostasis
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Questions and Answers

What total time range is considered normal for a bleeding time (BT) test?

  • (2 – 6) min (correct)
  • (4 – 8) min
  • (1 – 4) min
  • (3 – 7) min
  • What is the depth of the prick made during the Duke method for a bleeding time test?

  • 2-3 mm
  • 3-4 mm (correct)
  • 1-2 mm
  • 4-5 mm
  • Which requirement is NOT specifically mentioned for the Duke method?

  • Lancet
  • Blood pressure cuff (correct)
  • Filter paper
  • Sterilization solution
  • Which method involves using a blood pressure cuff during the bleeding time test?

    <p>Ivy Method</p> Signup and view all the answers

    Which advantage is associated with the Duke method of measuring bleeding time?

    <p>Uses minimal equipment</p> Signup and view all the answers

    What is the primary principle of the bleeding time test?

    <p>Determines platelet function</p> Signup and view all the answers

    What is one disadvantage mentioned for the Duke method?

    <p>Difficult to standardize the wound</p> Signup and view all the answers

    In the Duke method, how often should blood drops be wiped with filter paper?

    <p>Every 30 seconds</p> Signup and view all the answers

    What is the correct sequence of steps in the mechanism of hemostasis?

    <p>Vascular constriction, Platelet plug formation, Blood coagulation</p> Signup and view all the answers

    What condition is described by a platelet count higher than 450,000 platelets per microliter of blood?

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

    What type of thrombocytosis occurs as a reactive process to conditions like infection or inflammation?

    <p>Secondary thrombocytosis</p> Signup and view all the answers

    Which condition is a cause of thrombocytopenia?

    <p>Hepatitis C</p> Signup and view all the answers

    What is the normal range of platelet count in each microliter of blood?

    <p>150,000–450,000</p> Signup and view all the answers

    Which blood cell formation process is described by the term 'hematopoiesis'?

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

    What is the primary function of hemostasis?

    <p>To prevent and stop bleeding</p> Signup and view all the answers

    Which of the following is a cause of thrombocytosis?

    <p>Iron deficiency anemia</p> Signup and view all the answers

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