Bone Density Scans
A bone density test is used to measure bone mineral content and density. A bone density study can be more effective than a standard X-ray at identifying low bone density, which can be a sign of osteoporosis. Osteoporosis is a condition that weakens bones, making them more likely to break. The risk of osteoporosis increases with age.
You can expect to receive two scores from your bone density study:
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T score
Compares your bone mass to a young adult of the same gender with peak bone mass. A score of -1 or higher is normal, while -1.1 to -2.4 indicates osteopenia, and -2.5 or lower indicates osteoporosis.
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Z score
Compares your bone mass to other people of the same age, size, and gender. An unusually high or low Z score may indicate a need for further testing.
Your healthcare provider can give you more specific instructions on what to do before your bone density study.
Why Get a Bone Density Scan?
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Detect low bone density before a fracture occurs
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Confirm a diagnosis of osteoporosis if you have a fracture
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Having certain diseases, such as rheumatoid arthritis, type 1 diabetes, or hyperthyroidism
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Predict your chances of fracturing in the future
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You have already experienced a bone fracture that may be the result of thinning bones
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Using certain medications, such as steroids, hormone suppressants, and others
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Determine your rate of bone loss or monitor the effects of treatment if the test is conducted at intervals of a year or more
What is Osteoprosis?
Osteoporosis is a bone disease in which the mesh-like structure inside the bone becomes damaged. It literally means “porous bones”. The bone structure may be thin if either too much bone tissue has been lost, or if not enough bone tissue has been made. When the internal strands of the bone become too thin (lose density), the bones become weak and can fracture or break easily.When a bone with osteoporosis is broken, it is called a “fragility fracture”. Though fragility fractures can occur anywhere in the body, the most common occurrences are in the wrist, hip and spine. Many people do not realize they have fragility fractures. If left untreated, fractures due to osteoporosis could lead to serious complications.
Should I Schedule a Bone Density Scan?
You may need regular bone density screenings based on your age, family history or other risk factors you might have. Everyone should have their bone density checked as they age. Ask your provider how often you need a DXA scan. Anyone with a family history of osteoporosis will need bone density screenings more often.