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 (D)</p> Signup and view all the answers

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

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

What is the primary principle of the bleeding time test?

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

What is one disadvantage mentioned for the Duke method?

<p>Difficult to standardize the wound (D)</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 (C)</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 (A)</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 (A)</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 (D)</p> Signup and view all the answers

Which condition is a cause of thrombocytopenia?

<p>Hepatitis C (B)</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 (D)</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 (A)</p> Signup and view all the answers

What is the primary function of hemostasis?

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

Which of the following is a cause of thrombocytosis?

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

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