This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Heparin acts which of the following adjuvants? 
Select and explain. 
A. Antithrombin III, B. Protein C, C. Protein S, D. Thrombomodulin
A: Antithrombin III
Answer: A: Antithrombin III 
Explanation: Ans: A. Antithrombin IIIRef: Goodman & Gilman, 13th ed, pg. 588Heparin binds to antithrombin III (AT-lll) and accelerate the rate at which it inhibits various coagulation proteases.