Harvard Heart Letter

Ask the doctor: Are there noninvasive alternatives to a nuclear stress test?

After I had an abnormal electrocardiogram, my doctor wants me to have a nuclear stress test to check my arteries for any blockages. (I also have a left side bundle block.) What noninvasive test would give as much information (or almost as much) as a nuclear stress test? I have had many scans, for this and that, so I would like to limit my exposure to radiation if possible.
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