Kidney Stone Ultrasound Empty Stomach. Shock wave lithotripsy swl is the most common treatment for kidney stones in the u s. The primary requirement is to drink at least 24 ounces of a clear liquid an hour or more before the procedure.
There is little in the way of preparation for a kidney ultrasound. Kidney stones are hard collections of salt and minerals often made up of calcium or uric acid. Stones vary in size.
This procedure may also be used to determine blood flow to the kidneys through the renal arteries and veins.
Lt is sometimes called eswl. This procedure may also be used to determine blood flow to the kidneys through the renal arteries and veins. Extracorporeal shock wave lithotripsy. A kidney ultrasound is a painless noninvasive procedure that uses high frequency sound to produce video and still images of your kidneys.