text: Medical ultrasonography of the<unk>  tract is essential to rule out obstruction of the urinary tract.
option_0: Acute renal failure ultrasound
option_1: Acute kidney injury physical examination
option_2: Papillorenal syndrome physical examination
option_3: Nephrotic syndrome physical examination
option_4: Renal papillary necrosis physical examination
option_5: Acute kidney injury electrocardiogram
option_6: Renal artery stenosis physical examination
option_7: Acute kidney injury echocardiography and ultrasound