<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am suppose to have surgery but doctor wont clear me unless I have a stress test, he said i have 2 tumors each one on the kidnesy I am afraid, had cat scan done, he wrote I have reviewed with patients results and rec renal us to eval lesion. dw patient rec pelvic Angina of effort 413.9 multiple risk factors including dm, lipids, htn and change in pattern where she now had with stress  <response>: In case of a high risk surgery due to presence of cardiac risk factors, surgeons and anesthetists need a clearance or approval from physicians or cardiologists before doing surgery. Same is a case with you. You can consult a cardiologist as advised and if a stress test is required, a dobutamine stress test can be performed using infusion of a Chat Doctor. In this test you dont have to walk on a treadmill. Alternatively your cardiologist can examine you and have a word with the surgeon or anesthetist. Of course you will have to sign a high risk consent showing that you understand the risk posed by cardiac disease or risk factors if present. 