DEXA Bone Density Scan

Check your risk for bone loss and fractures with a simple scan.

As we age, bones can lose strength. A DEXA bone density scan helps identify bone loss, so you and your doctor can take steps to protect your health. At Banner Health, we offer fast, accurate testing with compassionate care.

What is a DEXA bone density scan?

A DEXA scan (also called a DXA scan or bone densitometry test) is a type of X-ray that measures the amount of bone in your body. It’s used to assess your bone mineral density (BMD) and estimate your fracture risk.

Also known as a bone density scan, this test uses a low-dose X-ray beam to take images of your bones—typically your hips and spine. It’s quick, painless and noninvasive.

Why should you measure bone density?

Knowing your bone mineral density helps your doctor:

• Detect early signs of bone loss
• Estimate your risk of fractures
• Make decisions about osteoporosis treatment or prevention

Low BMD can affect your ability to support body weight and increase your risk of developing osteoporosis or breaks from minor injuries.

Who should get a DEXA bone density scan?

A DEXA bone density scan helps check for bone loss and your risk of breaking a bone. It’s often recommended for:

• Women age 65 and older
• Men age 70 and older

You may also need a scan earlier if you have certain risk factors, such as:

• A history of broken bones from minor injuries (called fragility fractures)
• Low body weight (under 127 pounds)
• Use of steroid medications for more than 3 months
• Early menopause (before age 45) or low estrogen
• A family history of osteoporosis

Does Medicare cover bone density testing?

Yes. Medicare Part B covers a DEXA scan once every 24 months if you have one of the following:

• Low estrogen and are at risk for osteoporosis
• An abnormal spine X-ray that suggests bone loss
• Used steroids (glucocorticoids) for 3 months or longer
• Diagnosed with primary hyperparathyroidism
• Are currently taking osteoporosis medication

Talk to your doctor to find out if a bone density test is right for you.

How to prepare for a DEXA bone scan

Here’s how to get ready for your appointment:

• Wear loose, comfortable clothing
• Avoid metal objects or jewelry
• Do not take a calcium supplement within 24 hours of the scan

What happens during a bone density scan?

A DEXA scan is safe and simple:

• You lie flat on a padded table.
• A scanner moves slowly over your body.
• The process takes about 10–30 minutes.
• You feel no pain and no injections are needed.

The scan compares your bone density to healthy averages to help predict your fracture risk.

What do bone density scan results mean?

Your scan will show two scores:

• T-score: Compares your bone density to a young healthy adult
• Z-score: Compares your results to people your age and size

A T-score of -2.5 or lower may indicate osteoporosis. This doesn’t mean you’ll break a bone, but it does mean your bones are weaker and your risk is higher.

How is a bone density scan different from a bone scan?

A bone density scan (DEXA) measures bone mineral content to assess strength and risk.

A bone scan, on the other hand, is a nuclear medicine test that looks for infections, cancer or injury. The two tests are used for different reasons.

Why choose Banner Health for a bone density scan?

At Banner Imaging, you’ll receive:

• Fast, accurate bone densitometry testing
• Care from experienced, certified staff
• Results sent promptly to your doctor
• Support in managing your bone health

If your results suggest bone loss or osteoporosis, we’ll help guide next steps.

How to schedule a DEXA scan at Banner Health

Take control of your bone health with a quick, accurate DEXA bone density scan. Early testing can help reduce your risk of future fractures and support a more active lifestyle. Schedule your bone density test today.

Learn more about osteoporosis care at Banner Health.