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: Medicine
For the management of intraoperative myocardial ischaemia, all of the following are advised except 
Select and explain. 
A. Heparin, B. Intravenous nitroglycerine, C. Calcium channel blocker, D. Atropine
A: Heparin
Answer: A: Heparin 
Explanation: None