When the kidneys suddenly stop working, this is called acute kidney failure. This condition can occur within a few hours or days. If treated promptly, acute kidney failure is not a serious problem, and the kidneys can return to normal function after treatment.

Blood creatinine is a catabolic product of creatine phosphate. Creatinine has exogenous sources from food and endogenous sources from the liver, kidney, and pancreas. Testing the quantity of creatinine in the blood will help us know many health problems, including impaired kidney function.