This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pre Anesthetic Evaluation, Subject name: Anaesthesia
All of the following are true statements regarding drugs to be discontinued before surgery except : 
Select and explain. 
A. Thyroid medications need not be stopped before surgery, B. NSAIDs should be discontinued 72 hours before surgery, C. Warfarin should be discontinued 4 days before surgery, D. MAO Inhibitors should be discontinued 2 weeks before surgery
B: NSAIDs should be discontinued 72 hours before surgery
Answer: B: NSAIDs should be discontinued 72 hours before surgery 
Explanation: The following drugs has tobe continued on the day of surgery: Antihypeensive medications Cardiac medications (e.g.,b-blockers, digoxin) Antidepressants, anxiolytics, and other psychiatric medications Thyroid medications Anticonvulsantmedications Asthma medications. Steroids (oral and inhaled) Drugs that should be discontinued on the day of surgery Oral hypoglycemic agents NSAIDs - Discontinue 48 hours before the day of surgery Warfarin - Discontinue 4 days before surgery, except for patients having cataract surgery without a bulbar block. Sho acting Insulins except when given by a continuous pump Thienopyridines (e.g., clopidogrel, ticlopidine) except in cataract surgery, patients with metallic/drug eluting stents Aspirin in selected cases where reversal of platelet inhibition is necessary MAO Inhibitors - 2 weeks prior (MAO Inhibitors are usually continued.They should be discontinued if the patient and anesthesiologist factors are not orable to continue them)