Normally during a heart attack, or myocardial infarction, there is a lack of blood to a part of the heart muscle that causes shortness of breath and pain as well, all which leads to a faster than normal heart rate. But sometimes, the lack of blood is to an area of the heart that contains the special nerves that sends the electrical imulse through the muscle that tells the heart to contract, or beat. In that case, if the electrical part of the heart is affected, the heart rate may be too slow or may be irregular.
To answer your question plainly, there is no "normal" heart rate for a person suffering a heart attack.
If you are going by your pulse, or heart rate, to tell you if you think you are having a heart attack and need to dial 911, you may want to go by the typical symptoms:
--chest pain described as pressure like there's an elephant sitting on your chest. Usually in the center, but can be on one side or another. The pain can radiate to your arms or jaw. If you find yourself with your hand over your heart, and there's no national anthem playing, that's a problem.
--shortness of breath: you can't catch your breath even though you aren't doing anything
--sweating--you suddnely start to feel clammy and it is noticeable on your face
--sometimes there is nausea, but not always.
If you have these symptoms, call 911-do not drive yourself to the emergency room
Hope this helps! Please let me know if you have any questions!
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