Bone Densitometry (DEXA) Exam
Bone Densitometry (DEXA) Exam is the most reliable exam to determine if a person has even the earliest stages of bone loss associated with osteoporosis.
You will be asked to lie still on a table for this exam, while X-rays are being taken. Your shoulders, hips and feet will be positioned by the technologist.
The procedure is painless, non-invasive and safe. Radiation exposure from the X-ray beam is low (less than a standard chest X-ray).
While osteoporosis occurs in all bones, the DEXA exam measures bone density in the lumbar spine and hip, the most common site of osteoporosis related fractures. Your bone density is compared to two standards known as age matched and young normal. The aged matched reading compares your bone density to what is expected in someone of your age, sex and size. The young normal reading compares your bone density to the estimated peak of bone density of a healthy young adult of the same sex. Fracture risk and osteoporosis are defined by comparison with peak bone density.
About Osteoporosis
Osteoporosis occurs when too little bone is being formed, when too much bone is lost, or a combination of both. Factors such as menopause, aging, hormonal diseases, certain medications (thyroid, hormone, steroids) and inadequate calcium intake are just a few of the causes. These factors can cause weakening of the bones and increase your risk for fractures.
Preparation and Procedure
- Arrive 15 minutes before your appointment to allow time for admitting.
- Bring your provider's order.
- Bring a list of all the medications you are currently taking.
- Wear comfortable clothing.
- Do not wear clothing that has metal snaps, zippers, buckles or buttons in the chest or hip area.
- For women, please do not wear a bra with underwires.
- There is no special preparation necessary.
- You may take medications and eat before your appointment.
- Do not take any calcium supplements 24 hours prior to the DEXA exam.
Time Required
Approximately 30 minutes.
Test Results
- Your ordering provider will receive results of the bone density exam within three to five business days. Results will be available on the patient portal upon completion. Please note: many times, your provider is getting the results of your exam at the same exact time you do on the portal.
