The latest update from the hospital is that Dad's fever spiked fairly high earlier today, but then abruptly subsided. The doctors are looking into the possibility that he has a secondary infection, but they don't know anything for sure at this point. They also believe his blood pressure dropped as a result of the dialysis treatments and they have given him additional fluids intravenously to help raise it again. He is creating more sputum, which they have sent off to culture, but there are still no definitive results from the laboratory tests.