<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello Doctor, my TMT test idicate positive ,my doctor suggested that i ve to undergo coronary angiography.My question to u is thus it mean i have blocked artery? cant my treatment can be done with oral medication.Thaking uRegardsSaurav LahkarGuwahati, Assam, India.  <response>: Hi, Thank you for your query. I can understand your concerns. Positive TMT means you have inducible ischemia. You need coronary angiography CAG to detect any block or narrowing of coronary arterycarries.CAG is golden test. If the narrowing is less than 70 or have multi-vessel disease or significant co-morbidities, only medication is advised. Otherwise, high degree block or single vessel disease either angioplasty or by-pass surgery is advised. Each case is however different and decision is taken individually. Regards 