Moderate

Hemophilia A is caused due to deficiency of___________________?

Correct answer: D. Factor VIII

  • A. Factor X
  • B. Factor XI
  • C. Factor IX
  • D. Factor VIII

Explanation

Haemophilia A is an X-linked bleeding disorder caused by factor VIII deficiency, whereas factor IX deficiency causes haemophilia B. The intrinsic pathway defect prolongs the activated partial thromboplastin time.

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