What is the mechanism by which heparin exerts its anticoagulant effect in the treatment of coagulation disorders?

A By inhibiting the production of thrombin
B By enhancing the activity of antithrombin III ✓
C By promoting the formation of fibrin
D By inhibiting the activation of platelets

Explanation

Heparin works by binding to and enhancing the activity of antithrombin III, which then inhibits several steps in the coagulation cascade, including the conversion of prothrombin to thrombin.

Source

Hematology textbooks and research articles
Hematology Hematology: Coagulation Disorders Hematology: Coagulation Disorders Medium MEDICAL Confidence: high