<s>[INST] my father was diagnosised with renal problem and his creatitine level and urea level was increasing day by day from 4.5 to 6.1 within three days and he become restless on the fourth day.   Doctors did not dialysis him on the three days.  On the fourth day they dialysis him and he expired.   What will be the cause sir?.  We have lost a valuable father for us? [/INST] Hello and welcome to Chat Doctor. As a Urologist, i can understand your anxiety and share your loss. To begin with, certainly your father was not in good health. You haven't written his age, nor his other medical problems with duration. There must be some reason for his kidney failure, needing dialysis. The other medical reasons could contribute to rapid deterioration, once dialysis was stopped.  Dialysis may not be indicated to be done daily. The exact cause, as to why dialysis wasn't done for three days, can be asked to the treating doctor.  Chat Doctor.  Manga. </s>