Acute<unk><unk>  is diagnosed and staged clinically on the basis of GFR and urinary output. In 2012, the KDIGO AKI guidelines proposed a combined staging scheme that takes into account both criteria and clinical outcome.
Acute kidney injury diagnostic study of choice
Analgesic nephropathy diagnostic study of choice
Nephrotic syndrome diagnostic study of choice
Interstitial nephritis diagnostic study of choice
Acute tubular necrosis other diagnostic studies
Acute tubular necrosis echocardiography or ultrasound
Lupus nephritis diagnostic study of choice
Diabetic nephropathy other diagnostic studies