My father has had a echo and a stress test 1 week apart and his left side shows in one week it has gone from 35 percent to 24 percent function they have taken one blood pressure pill away and replaced it with a 325 bayer and 2 other meds low dosage my dad about 10 yrs ago had a triple by pass now they say he has had at some time a heart attack unsure as to when they wanted to do heart cath and he refused what else can we do to help he is a smoker and he has oxygen and keeps getting short of breathe wh at else is going to happen he is weak