The biological anticoagulant is________________?
Correct answer: C. Hirundine
- A. EDTA
- B. Sodium citrate
- C. Hirundine
- D. Double oxalate mixture
Explanation
Hirudin is a natural anticoagulant found in leech saliva that directly inhibits thrombin. EDTA, citrate, and oxalate are laboratory anticoagulants rather than biological anticoagulants.
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