The duration of symptoms varies. The decreased urine output phase may last from a few days to 6 weeks or more. This is occasionally followed by a period of high urine output, where the healed and newly functioning kidneys try to clear the body of fluid and wastes. One or two days after urine output rises, symptoms reduce and laboratory values begin to return to normal.
What to expect if I have Acute tubular necrosis  (Outlook/Prognosis)?
The duration of symptoms varies. The decreased urine output phase may last from a few days to 6 weeks or more. This is occasionally followed by a period of high urine output, where the healed and newly functioning kidneys try to clear the body of fluid and wastes. One or two days after urine output rises, symptoms reduce and laboratory values begin to return to normal.