What to expect of a DXA Scan

A DXA (Dual Energy X-ray Absorptiometry) scan is a medical imaging test that measures bone density and body composition. It is commonly used to diagnose osteoporosis and assess an individual’s risk of fractures.

DXA scans are often recommended for postmenopausal women, men over the age of 50, and individuals with risk factors for osteoporosis, such as a family history of the condition, certain medications, or a history of fractures.

You generally don’t need to do much to prepare for a DXA scan. Avoid taking calcium supplements for 24 hours before your scan. Wear loose, comfortable clothing without metal zippers or buttons, and inform your healthcare provider if you are pregnant.

A DXA scan usually takes about 10 to 30 minutes to complete, depending on the areas of the body being examined.

No, a DXA scan is a non-invasive and painless procedure. You will be asked to lie still on a table while the machine scans your body.

DXA scans use very low levels of X-ray radiation, so the risk is minimal. However, it's always important to inform your healthcare provider if you are pregnant.

During the scan, you will lie on your back on a padded table. An X-ray generator will pass over your body, and there will be a detector underneath the table. You will need to remain still and may be asked to hold your breath for a few seconds at times.

Yes, you can eat and drink normally before a DXA scan. However, avoid taking calcium supplements for at least 24 hours prior.

The results of a DXA scan will indicate your bone mineral density (BMD) and compare it to that of a healthy young adult and to people of your own age. This comparison helps to determine if you have normal bone density, low bone density (osteopenia), or osteoporosis.

The frequency of DXA scans depends on your individual risk factors and your healthcare provider's recommendations—typically every 1-2 years for those at high risk of osteoporosis.

Yes, DXA scans can be performed on children, especially if there is a concern about bone health or metabolic disorders. However, the need for a scan should be determined by a paediatric specialist.

The cost of a DXA scan can vary, but it is often covered by the NHS if medically necessary. Private DXA scans may range from £50 to £150 or more.

DXA scans are available at many hospitals and clinics across the UK. Your GP can refer you to a local facility that performs the scan.

No, the results of the DXA scan will typically be reviewed by a radiologist first. Your healthcare provider will discuss the results with you during a follow-up appointment.

While DXA scans are primarily used to diagnose osteoporosis, they can also help in evaluating other conditions that affect bone health and body composition, such as osteopenia and certain metabolic disorders.