Heart rate fluctating every few mins from 55- 130. patient 90 years old. please comment?

Atrial fibrillation: This is quite possibly Atrial Fibrillation, but could be a variety of other heart conduction problems and should be checked out by your Primary Physician or Cardiologist if you have one as soon as you can.

Tachybrady syndrome: As we age, the electrical system in our heart get tired and can take "time-outs" so to speak. Variable heart rate like yours at your age is most likely due to this. You need to see a cardiologist as soon as possible; eliminate any medication that may be aggravating situation, do a Holter monitor to document your rhythm, and then a pacemaker ought to be considered. IF you have passed out, then ER