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A member asked:
Does a really fast heart rate cause a heart attack?
2 doctors weighed in across 2 answers
No: A fast heart should be investigated. It can be serious and be related to a clot in the lungs, a heart attack, or dehydration.
Answered 7/3/2013
6.1k views
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Not usual but it can: The fast heart beat which is generated by the lower heart chambers(ventricular tachycardia) can reduce the blood volume generated by the heart and if the subject has low preserve (some narrowing of the coronary arteries or decreased heart function) can cause ischemia t the heart.
Answered 1/30/2012
6.1k views
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