What is DEXA and how does it work?
DEXA (Dual Energy X-ray Absorptiometry) or bone densitometry uses low strength X-rays to measure the density and mineral content of your bones. The amount of X-ray used is less than one-tenth of what is used in a chest X-ray. This test is a valuable tool for diagnosing osteoporosis, which often has no symptoms until you suffer a fracture. DEXA can diagnose the disease at its earliest stages, which means you can begin receiving treatment to protect your bones sooner.
What happens during your DEXA exam?
- A technologist will take you to the exam room, ask you some medical questions, and explain what you can expect during your test.
- You will need to remove any metal or plastic from the part of your body being examined.
- Depending on whether your hip, spine, or wrist is being scanned, you will either lie on a table or sit in a chair. You may lie with your legs straight or with your lower legs resting on a platform to elevate them slightly.
- The scan will take about 30 minutes.
What happens when your exam is complete?
- You can leave immediately after your DEXA scan.
- The radiologist will review your scans and send the results to your physician.
