CPAP def. to lead off, as far as the failure treat what will kill them first, the left sided failure. As far as the A-fib goes dont assume the beta agonist caused it. If the rate is high enough to cause the failure then maybe that is the underlying cause....the telltale sign there would be hypertensive vs. hypotensive....Also the ASA is not a bad idea and for sure will not hurt this pt. the pt is not circulating a whole lot of blood (therefore peripheral edema)....great time for clots to form...esp. w/ the a-fib. Also w/ the NTG, personnaly I would give it and not worry about the "right sided MI"...however in this case I would make sure that I had an IV est. prior to NTG admin. if the pt. became hypotensive then I would elevate the legs, drop the head and administer a 1-200 cc bolus monitor the pt. I would def. give the lasix, and lots of it....we do double the daily dose in my system...(most I have ever given was 200 mg...however that pt. could have gotten 480 mg per protocol). One more thing I didnt see anyone mention which suprises me is MS04, morphine works excellent for CHF pts. (esp. for those w/ renal failure where lasix may not work as well)...just consider that this pt. needs the preload reduced...you can scare yourself into not treating this pt. by thinking to much. Don't get me wrong, you need to consider the ramifications of your treatment...however...you also need to treat what will kill them first...and in this case it is left sided failure. But remember the underlying cause (a-fib etc...)...maybe treating according the CHF/Pulm. Ed. protocol is wrong, maybe the arrythmia protocol is the way to go. anyway...just my thoughts...g'night and good luck....
Conrad