Signs and symptoms of acute kidney failure may include:

– Decreased urine output, although occasionally urine output remains normal
– Fluid retention, causing swelling in your legs, ankles or feet
– Shortness of breath
– Fatigue
– Confusion
– Nausea
– Weakness
– Irregular heartbeat
– Chest pain or pressure
– Seizures or coma in severe cases

Sometimes acute kidney failure causes no signs or symptoms and is detected through lab tests done for another reason.