How so? My only concern when I first read your original post is that bradycardia (low pulse rate) does indeed call for a pacemaker and a defibrillator is for the other end of the spectrum, but using today's technology, the units normally contain both. I know, that's what I have and so I can't see them taking out one and putting in another, but hey, I'm not a cardiologist either so I accepted what she said as gospel. Let us know what you find out.Morning. Hot and dry. Our friend on CTT, Zeke, may be a fake.Have a good one.