Understanding the mechanisms behind a nuclear stress test
DEAR DR. ROACH: I had a comment about your recent column on nuclear stress tests. As an 87-year-old person who has experienced atrial fibrillation and a mild stroke, I have had two nuclear stress tests done. In both cases, I told the supervising nurse that I wanted to go the max limits they would allow. Even though I attempted to prepare by briskly walking up the hill close to my home and thought I was doing well on the treadmill, I failed to reach the final parameters that they were seeking. To get me there, I was injected with something (the name escapes me) that is supposed to ...