My father had quadruple bypass surgery a couple of weeks ago - he is currently in a rehab center receiving physical therapy - in the past few days he has experienced (while doing exercises, walking to the shower, walking down the hall) a drop in his heart beat - it can go from 71 to below 30 - it then recovers - the emergency room doctor said it could be that he is on two medications to slow his heart rate down - maybe medications might need adjusting - his cardiologist has not seen him yet and his first appointment is scheduled for 8/3 - any suggestions that I can try and ease his mind - so far some people have said change of meds, others pacemaker??? Thank you