Platelets and Clotting Disorders · Physiology

Which laboratory test primarily evaluates the extrinsic pathway of coagulation?

  1. Activated partial thromboplastin time
  2. Bleeding time
  3. Prothrombin time
  4. Thrombin time
Show answer and explanation

Correct answer: Prothrombin time

Prothrombin time measures the extrinsic and common pathways of coagulation. It is sensitive to deficiencies of factor VII.

Difficulty: Medium Question 8 of 20

Practice all 20 Platelets and Clotting Disorders questions

Keep practicing

More Platelets and Clotting Disorders questions