Medical ultrasonography of the<unk>  tract is essential to rule out obstruction of the urinary tract.
Acute renal failure ultrasound
Acute kidney injury physical examination
Papillorenal syndrome physical examination
Nephrotic syndrome physical examination
Renal papillary necrosis physical examination
Acute kidney injury electrocardiogram
Renal artery stenosis physical examination
Acute kidney injury echocardiography and ultrasound