1. Acute Kidney Failure – This refers to a rapid decrease in the functioning of the kidneys caused by various factors, including, septicemia (blood infection), urinary tract diseases, ingestion of harmful substances, as a side effect from medication, or overdosing on medication. Acute kidney failure may also occur as a side effect of another condition. In these cases, if the condition is immediately treated, the chances of the kidneys being restored to its former state are high.
2. Chronic Kidney Failure – This refers to the gradual deterioration of the kidneys over time. The main causes of this type of kidney failure are diabetes mellitus, high blood pressure, obesity, and other conditions, which may take as long as one year to present any symptoms such as inflammation of the kidneys or polycystic kidney disease. Most patients are only diagnosed with this condition once their kidney function has been significantly reduced, leading to kidney failure. In these cases, treatments are unable to restore the kidneys to their former state.