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 things B Most commercial preparations of heparin now utilize pig intestinal slimes C Act via 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 things