Moderate

The best screening test for hemophilia is_____________?

Correct answer: C. PTT

  • A. BT
  • B. PT
  • C. PTT
  • D. CRT

Explanation

Hemophilia causes deficiency of intrinsic-pathway factors, especially VIII or IX, which prolongs the activated partial thromboplastin time. PT tests the extrinsic pathway and is usually normal.

Last updated

Practise Blood and Immunity

81 free Blood and Immunity MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physiology questions like this

Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions