Variable : Heart rate is variable with atrial flutter and it can be quite difficult to control. Acceptable rate is less than 100-110. The most common heart rate without medication is about 150 beats per minute.
Answered 2/1/2015
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Depends: It may vary from normal (60-100) to abnormal (low or high). It can change suddenly as well.
Answered 9/10/2013
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300 divided by: 2, 3, 4 most commonly but variable.
Answered 9/13/2013
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