A patient with a genetic mutation has impaired thrombin production. Which outcome is most likely when a blood vessel is damaged?

💡 Explanation

Fibrin clot formation is inhibited because thrombin is essential for converting fibrinogen to fibrin, which forms the meshwork of a blood clot. Therefore, impaired thrombin production directly prevents fibrin clot formation, rather than enhancing vasoconstriction or affecting erythrocyte production.

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