Description of the test
Making sure your bones are strong and healthy is a common concern for men and women as we age. A bone mineral density scan is a non-invasive, pain-free test that examines the density of your bones. It tells you whether your bones are weak (low density) or strong (high density).
A dense bone would be like a giant straw filled with sand - there are very small spaces between each grain of sand. A low density, or porous, bone would be like a giant straw filled with rocks - large spaces between the rocks make it less densely packed.
The test is used to predict the chances you have of developing osteoporosis later in life.
How often should this test be performed?
This test is used as needed to check for weak bones or to evaluate how osteoporosis treatments are working. Your doctor will let you know how often you need this test.
Why is this test performed?
This test is used to screen for osteoporosis and to see how well osteoporosis treatments are working. This test is useful for people who:
- are over the age of 65
- have had fractures of the spine
- have an excessive curvature of the spine
- are taking certain steroid medications (which can increase the risk of osteoporosis)
- have lost at least 2 inches in height (or at least 1 inch in the last year)
- may be at risk of developing osteoporosis for reasons not listed above
- are being treated for osteoporosis (to see whether treatment is working)
Are there any risks and precautions I should know about?
The test is very safe, although it is not recommended for anyone who is pregnant or suspects that they may be pregnant. Exposure to radiation during the test is minimal. The bone mineral density test does cause not any side effects.
