Delay in blood coagulation results from________________?
Correct answer: A. Heparin
- A. Heparin
- B. Human thrombin
- C. Ferric chloride
- D. Vit- K
Explanation
Heparin delays coagulation by enhancing antithrombin activity, which inhibits thrombin and several activated clotting factors. Vitamin K supports production of clotting factors, while thrombin promotes clot formation.
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