hello; I just cancelled a nuclear stress test my new cardiologist ordered for me because an EKG test showed that I may have an enlarged left Atrial, and I have been short of breath. I am 66 with a long history of smoking, now quit, and am overweight, but not obese, and I have high clorestrol also. That is it. I am afraid to take this test because I heard people have died. I am seeing him wednesday and I was wondering if there are any other safer tests I can take that would be as effective. He also ordered an echocardiogram which I do not mind doing. The nuclear stress test takes three hours an