Member Services: Bone Density

What is a Bone Density scan?
A bone density test measures the amount of bone in certain areas of the body, usually the hip and lower spine. Scanning machines can measure bone mineral density by using narrow beams of X-rays or ultrasound. The bone mineral density is compared to reference standards to determine the strength of the bone. The lower the bone density the higher the risk of fractures.

Bone density decreases in men and women as they age, but in women, the decrease is faster after estrogen production ends. According to the National Osteoporosis Foundation, low bone mass is the primary cause of osteoporosis and bone fractures in women over the age of 50. Medication may be needed to help maintain bone mass, prevent further bone loss, and reduce fracture risk.

Why do I need a Bone Density scan?
A bone mineral density test is the only way to diagnose osteoporosis and determine your risk of fractures in the future. Since osteoporosis can develop unnoticed for years until a fracture occurs, early diagnosis is important.

Osteoporosis is most common in women who have gone through menopause. The National Osteoporosis Foundation recommends that women younger than 65 years, with one or more risk factors of osteoporosis, should have their bone density tested. If you have one or more of the following risk factors for osteoporosis, you should consider having a bone density test:

• You have a personal history of bone fractures.
• You have a family history of osteoporosis or bone fractures.
• You have taken steroid medications for long periods of time.
• You have low body weight, a slight build, or a light complexion.
• You smoke or drink heavily.

A bone mineral density test can help to monitor the treatment of osteoporosis and identify women who may benefit from hormone replacement therapy.

How do I prepare?
No advance preparation is needed for a Bone Density scan. You should avoid metal buttons or buckles on your clothing and remove any jewelry that could interfere with the test.

During the exam:
A typical test requires you lie on your back on an exam table while a scanner passes over the test areas. The test should last from 10 to 15 minutes.

After the exam:
Preliminary test results and a detailed written report of the procedure, findings, and results will be sent to your physician within several days. Your physician will contact you to discuss the results. Your physician will use the test results and other information to decide if treatment for low bone mineral content or osteoporosis is necessary.

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