Question:medium
Bleeding time is NOT usually prolonged in
Bleeding time is NOT usually prolonged in
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Separate platelet-related bleeding disorders from pure coagulation factor deficiencies.
Updated On: Jul 16, 2026
- Haemophilia
- Secondary Thrombocytopenia
- Scurvy
- Von Willebrand's Disease
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The Correct Option is A
Solution and Explanation
This question separates coagulation factor disorders from disorders of primary hemostasis, only the latter of which prolong bleeding time.
- Haemophilia: Correct -- a coagulation cascade defect (factor VIII/IX) that prolongs aPTT but not bleeding time.
- Secondary Thrombocytopenia: Wrong choice for "not prolonged" -- low platelet count directly prolongs bleeding time.
- Scurvy: Wrong choice for "not prolonged" -- weakened vessel walls from defective collagen prolong bleeding time.
- Von Willebrand's Disease: Wrong choice for "not prolonged" -- impaired platelet adhesion from low vWF prolongs bleeding time.
Correct answer: Haemophilia
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