Kristina K. Carlton wrote:
> Hi Ron,
> 
> My electrolytes have been checked several times and are always ok. My HR is so high that
> sometime walking around the house leaves me out of breath. So I am going to
> see a cardiologist as since taking a beta blocker is just a band-aid, not an
> answer.
> 
  It's the minerals in the cells that determine heart rate, not in the 
bloodstream necessarily.Intracellular IIRC.

For heart rate or rhythm disturbances an electrophysiologist is the one 
to consult, it's like the difference between a plumber (cardiologist) 
and an electrician.

William