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
[{'content': 'Which of the following is an absolute contraindication for exercise testing? \nSelect and explain. \nA. Unstable angina, B. Aoic stenosis, C. Peripheral vascular disease, D. One week following myocardial infarction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Contraindication for stress test are: Sever aoic stenosis Acute myocarditis/pericarditis Sever left main stem disease Dissecting aneurysm Ongoing tachy/brady arrhythmias Sever hypeension (UNTREATED) Congestive cardiac failure (UNTREATED) Ref: Harrisons Internal Medicine, 18th Edition, Chapter 243', 'role': 'assistant'}]