kidney failure is a medical condition in which the kidneys fail to function properly. There are two forms of kidney failure: acute (acute kidney injury) and chronic (chronic kidney disease); either form may be due to a large number of other medical problems.
Kidney failure is detected by an elevated serum creatinine. When renal failure occurs, there is a decrease in the glomerular filtration rate. When the kidneys does not function adequately, there are abnormal fluid levels in the body, deranged acid levels, abnormal levels of potassium, calcium, phosphate, hematuria (blood in the urine) and (in the longer term) anemia. Long-term kidney problems have significant repercussions on other diseases, such as cardiovascular disease.