Bone Mineral Densitometry
Bone density scans are an enhanced form of x-ray technology that is used to measure bone loss. The most used method is a type of x-ray called ‘dual energy x-ray absorptiometry’, which scans the bones in the lower spine and hip; two of the main areas where fragility fractures mainly occur.
Bone Densitometry scanning is used to diagnose osteoporosis in both men and women, and is a safe, painless, and cost-effective method of measuring bone mass or density.
The purpose of Bone Density Tests
Also referred to as a DEXA or BMD scan, bone density testing is used to:
- Identify decreases in bone density.
- Confirm diagnosis of osteoporosis.
- Identify the likelihood you may have in having a fragility fracture (break).
- Monitor osteoporosis treatment.
How to prepare for a BMD
To prepare for your Bone Mineral Densitometry:
- Inform your doctor if you’ve recently had a barium exam or had contrast material injected for a CT scan.
- Avoid taking calcium supplements at least 24 hours before your bone density test.
- Wear loose and comfortable clothing and avoid wearing clothing with zippers, belts or buttons.
Bone Mineral Densitometry FAQs
Here are the answers to the most frequently asked questions around bone mineral testing.
How often should a bone mineral density test be done?
For women under 65, bone density tests may be recommended based on risk factors for osteoporosis. If you are currently taking medication for osteoporosis, it is suggested to have a bone density test every 1 to 2 years.
How long does a Bone Mineral Densitometry take?
A bone density test generally takes between 10 to 30 minutes. This time may vary depending on the number of areas being scanned.
What should you not do before a bone density test?
You do not have to change your daily routine prior to a bone mineral densitometry. However, it is advised to not take any calcium supplements for 24 hours before your bone densitometry test.