Printer FriendlyDXA Scan
Remember
- DXA stands for "Dual-energy X-ray Absorptiometry".
- The DXA scan is a method used to measure bone density (how solid/strong your bones are).
- The DXA scan is open, doesn't hurt, and takes 6 minutes on average.
What is DXA scan?
DXA stands for "Dual–energy X–ray Absorptiometry". It is the most widely used method to measure bone density (how solid and strong your bones are), and if your bones are thinning.
Does a DXA scan hurt?
The test doesn’t hurt. There are no injections or medications to take. The machine is open and each scan takes about 1–6 minutes.
How should I prepare for the DXA scan?
- Appointments are usually scheduled at least 7 days after having any procedure that involves contrast materials (for example, a CT Scan with contrast dye).
- Foods that contain a lot of calcium (for example, dairy products) should not be eaten 4 hours before your DXA scan.
- Don’t wear clothes with metal buttons, snaps, or zippers, as metal interferes with this test. You can wear a hospital gown.
What happens during the DXA scan?
The technician will ask you questions about your medical history and explain the procedure. You may need to pee into a cup, as a routine pregnancy test is done in most hospitals on all patients who are 12 or older. A machine shaped like an upside down "L" will slowly move back and forth over your stomach area to measure the bone density of your spine and hips. The arm of the machine is about 12 inches away from your body as it scans. You will be asked to stay still and not talk during the entire scan, but remember to breathe normally. You should ask questions if you don’t understand what to expect.
Should I be concerned about the amount of radiation I will receive?
No. The amount of radiation is much lower than that of an x–ray. It is even less than the amount of radiation that you would be exposed to if you took an international flight.
When do I get the results of my DXA scan?
The DXA scan must be carefully reviewed by the technologist and a healthcare provider (HCP) who specializes in bone health. Usually your HCP will review the results with you either over the phone or at your next appointment. A follow-up scan is often done every 1-2 years, or as needed (if you are on medication that lowers the amount of estrogen in your body).
Updated: 3/30/2010
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