The following pathologic process is termed"renal failure": Various causes Severely impair renal function Glomerular filteration rate Retention of metabolic wastes Disturbanc of internal environment a serial of clinical manifestations Renal failure Acute renal failure(arF (CRF) Cronic renal failure Uremia5 The following pathologic process is termed ''renal failure'': Glomerular filteration rate↓ Retention of metabolic wastes, Disturbanc of internal environment Uremia Renal Failure Acute renal failure (ARF) (CRF) Cronic renal failure a serial of clinical manifestations Various causes Severely impair renal function