My dad, 59 years, went into the hospital this week with two types of heart failure and lungs filled with fluid. They put a ballon in and put him on a breathing machine 4 days later and told us how much the veins were blocked and that his heart was only working at 20%. They did the bypass surgery replacing 5 veins but last night while still heavily medicated in the heart ICU he ripped out his breathing tube, they removed his ballon but he is still wheezing, very labored breathing, and his heart isn't any stronger. The fluid in his lungs is still there because the medicine he needs to take to help him pee it out drops his potassium levels way to much, so they have to take him on and off that drug. Is this to be expected? I am really worried since he got worse since we brought him in and after this dangerous surgery he still doesn't seem to be getting better/stronger. Any advice, tips, questions I should ask would really be appreciated.