Your doctor will let you know whether you need to drink extra fluids before your scan or whether your bladder should be empty.
Tell your doctor about any vitamins and supplements you take and whether you take aspirin, ibuprofen, or naproxen. These are a type of pain medicine called nonsteroidal anti- inflammatory drugs (NSAIDs).
Leave all jewelry at home. You may need to wear a gown during the scan.
Certain things can affect your test and make it less accurate. Let your doctor know if:
- You've had another test with radioactive material recently because you might still have some in your body.
- You've had a barium test recently because it might still be in your digestive tract.
- You take diuretics or medicine for your heart or high blood pressure.
- You've had an intravenous pyelogram test (a type of kidney X-ray that uses a contrast material) within the last 24 hours.