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A member asked:

What do you recommend if i had 2 stress test done a exercise one and a thallium one on both my heart rate dropped wha could cause it?

A doctor has provided 1 answer

Thallium?: You said "thallium" but perhaps you meant adenosine or lexiscan? - these two agents are used to perform a stress test in which you don't have to exercise, thus in contrast to your first one. Both agents can cause the heart rate to drop as a side effect which has no prognostic significance.

Answered 7/15/2014

3.9k views

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