A member asked:

Sinus tachycardia at rest and very high during exercise, could it be dangerous?

A doctor has provided 1 answer
Dr. Louis Esquivel answered

Specializes in Holistic Medicine

Yes, possibly.: This problem needs further medical evaluation by a cardiologist. A formal stress test should be performed to determine if this is indeed a sinus rhythm or not and why you have such a sustained tachycardia.

Answered 8/9/2013

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Sinus tachycardia of the heart at rest, why does this happen?

3 doctors weighed in across 2 answers