My sister is in the advanced stages of cirrohsis . She is in the hospital now. She was admitted because of her liver and congestive heart failure. She also had a bleeding ulcer, they have stopped the bleeding. She is confused and disoriented. At this point she is unresponsive. She is receiving antibotics for a urinary tract infection because of her ammonia levels. What happens if her ammonia level keeps rising? And what should we look for in the next stage of her illness?