What to expect of a DXA Scan

A DXA (Dual-energy X-ray Absorptiometry) scan is a medical imaging test designed to measure bone density and assess the risk of fractures. It can also be used to measure body composition, such as the amount of fat and muscle in your body.

You might need a DXA scan if you are at risk of osteoporosis, have had a recent fracture, or have a condition or are taking medications that can affect bone health. It is also used for body composition analysis in certain health assessments.

Yes, a DXA scan is safe. It uses very low levels of radiation, significantly lower than a standard X-ray, to obtain accurate readings.

Preparation is minimal. However, you should avoid taking calcium supplements for 24 hours before the scan. Wear loose, comfortable clothing and avoid garments with metal fastenings or zips.

A DXA scan typically takes about 10 to 20 minutes to complete, depending on the areas of the body being examined.

During a DXA scan, you will lie on your back on a flat, open X-ray table. The scanner will pass over your body, usually focusing on your hip, spine, and in some cases, your forearm.

No, a DXA scan is painless and non-invasive. You will need to stay still during the scan to ensure accurate results.

A trained radiographer or technician will perform the scan. The results are usually reviewed and interpreted by a specialist, such as a radiologist or an endocrinologist.

You will usually receive your results within a few days to a week, depending on the healthcare facility. Your doctor will discuss the results with you.

In the UK, DXA scans are generally covered by the NHS if medically necessary. If the scan is for body composition analysis or other uses not covered by the NHS, you may need to pay privately.

Yes, you can eat and drink normally before a DXA scan, but avoid taking calcium supplements for 24 hours before the test.

Wear loose, comfortable clothing without metal zips, buttons, or hooks. You may be asked to change into a hospital gown if your clothing interferes with the scan.

The risks are minimal as it uses very low doses of radiation. However, let your doctor know if you are pregnant as radiation exposure should be avoided during pregnancy.

Yes, children can have a DXA scan if needed. However, the decision to perform a scan on a child will depend on the specific medical circumstances and should be discussed with a healthcare provider.

The frequency of DXA scans depends on your individual risk factors and medical history. Your doctor will provide guidance on how often you need the scan based on your health needs.