Various parameters like fractional sodium excretion, urinary sodium concentration, urine osmolality and U/P creatinine ratio have been used to diagnose<unk>  renal failure. The fractional sodium excretion is identifies as the most effective non-invasive test in formulating the differential diagnosis of<unk>  renal failure .
Acute renal failure differential diagnosis
Acute kidney injury differential diagnosis
Chronic renal failure differential diagnosis
Acute renal failure other diagnostic studies
Papillorenal syndrome differential diagnosis
Oliguria differential diagnosis
Acute kidney injury other imaging findings
Tumor lysis syndrome differential diagnosis