Pharmacology Heparin is the commonly used anticoagulant in cardiac surgery. All of the following are true about heparin except A Weakest acid found in living beings B Most commercial preparations of heparin are derived from pig intestine C Acts antithrombin activation D Produce thrombocytopenia 💡 Explanation Heparin is the commonly used anticoagulant in cardiac surgery. All of the following are true about heparin except ✓ Correct Answer: A. Weakest acid found in living beings