My mom is 85 and in the hospital right now cuz she fell. she is coming along fine..all her tests came back normal. She has a rapid heartbeat and the dr. said he will increase her meds (she takes meds now for irregular heartbeat). I am concerned for her. Is that all they do for rapid heartbeat is regulate the medication.....Is this serious?? She is in good health considering her age, but she does have dimentia...Any info will be appreciated. thanks..bride 527