my dads heart rate went up to 118(after exertion), and then didnt come down to his normal 86 for over 2 hours.(he was at rest) why?  he has COPD, congenstive heart failure, and atrial fib, and is 90 years old- he is very much out of shape. thanks so much. betty
Hey Betty, generally in a normal individual the rate you describe is well under normal range and need for be treated.  However, for your grandfather.  I would suggest you to maintain resting in 60s and with exertion in 90s.  You may optimize the rate limiting Chat Doctor.  Also subclinical worsening of congestive failure or COPD may increase the resting and with exertion rate, so make sure he has regained extra fluid In total just optimization of the meds he is already on would do the trick Regards