Hi, my mum went into hospital last week with fluid in her lung,since then she has deteriorated significantly. She cant walk,is incontinent,cant feed herself, is given drinks from a beaker, and is very confused repeating "change 5 into 3".Yet she was fine until going into hospital doing all the normal things. A brain scan yesterday was clear.A biopsy from a mole on her neck is still awaiting result. A body scan has found a cyst on her kydney.Other tests,urine and blood have turned up nothing.What else can cause this. Anne