Thanks for the info, all. Dad is actually in pretty good shape for his age. Remember, they removed his bladder and prostate when he was 80.
He was under the care of a "hospitalist" this last admission who called in a nephrologist to manage the BP along with Dad's cardiologist. Dad's cardiologist did a nuclear scan of Dad's heart while Dad was in the hospital (results were normal) and I suppose it was this test where the blockage was found. The cardiologist never mentioned anything about the blockage, so maybe, like Patricia says, it is not a big deal. The other carotid artery was fine.
He is administering his anti-fungal meds through his Picc line after mixing the medication and diligently takes all 12 BP meds twice a day. His BP is running in the 140-low 160 range now on the top and the bottom number is always in the 50s or low 60s. He is starting to do a little walking around the neighborhood now which seems to be raising his heart rate a little. Heart rate has been in the low 50s. His output is increasing even though he still is on fluid restriction of 2000cc per day. His adema was severe but now seems to be resolving with the Lasix. He just needs to get rid of that dang yeast infection (Candida Tropicalis). The ID doc (who I want him to fire!) says he will be on the meds for 4 weeks, then she leaves town for 3 of those 4 weeks!
He is going to the nephrologist's office on Monday to have bloodwork done. They want to watch his potassium, sodium and magnesium as all have been low and were replenished by IV during his hospital stay. He is still taking potassium by mouth. I think getting him off the Vancomycin and Zosyn probably helped to make him feel better.