{"id":5405,"date":"2024-06-18T12:31:11","date_gmt":"2024-06-18T19:31:11","guid":{"rendered":"https:\/\/www.healthimages.com\/?p=5405"},"modified":"2024-06-18T12:31:11","modified_gmt":"2024-06-18T19:31:11","slug":"what-are-dexa-scans-used-for","status":"publish","type":"post","link":"https:\/\/www.healthimages.com\/what-are-dexa-scans-used-for\/","title":{"rendered":"What are DEXA scans used for?"},"content":{"rendered":"

\"What<\/p>\n

Bone density scans are vital for evaluating bone health so you and your doctor can decide on treatment plans for issues like osteoporosis. A DEXA scan is a quick screening<\/a> that can provide useful information about bone density, existing conditions and the likelihood of future fractures. You will not need to take special preparation steps before this scan. However, you should tell your provider and technologist if you may be pregnant or recently received a contrast material injection. If you need a DEXA scan, keep reading to learn more about the test and how it can help you. <\/p>\n

What is a DEXA scan?<\/h2>\n

A DEXA scan measures your bones’ mineral content with low-dose x-rays. DEXA scans are safe and use much less radiation than other x-rays. These inexpensive scans are a reliable way to diagnose osteoporosis. <\/p>\n

The painless test usually takes half an hour or less. You will not need to prepare for the exam except to avoid wearing clothes or jewelry with metal components such as belts, buckles or chains. Additionally, you cannot take calcium supplements for 24 to 48 hours before the scan.<\/p>\n

During the scan, a dual-energy x-ray passes through your body. Your soft tissues and bones absorb some of the radiation, while the rest travels throughout your body. Detectors in the DEXA machine measure the amount of radiation passing through the bones. <\/p>\n

The scan will begin with you lying on the x-ray table. The technologist will position your body correctly and use devices like foam blocks to help you hold the necessary positions. The machine’s arm will pass over your body, using two beams with a small amount of radiation to distinguish bones from tissue. Scans often occur over the spine and hips, but you may need to scan other locations. For example, the technologist may scan your forearm to assist in the detection of cortical bone loss associated with hyperparathyroidism if scanning your spine or hip is not possible. <\/p>\n

The scanner will translate measurements into graphs and pictures. Fat and muscle will appear as shadows, while bone will look white on the monitor. Your radiologist or provider will review and interpret the findings, and your provider will send a written report to recommend possible treatments. <\/p>\n

What is the value of a DEXA scan?<\/h2>\n

\"What<\/p>\n

DEXA scans make it possible to identify reductions in bone density, allowing your doctor to diagnose osteoporosis in the early stages before you break a bone. However, there are several other reasons you may need this scan. You may receive a bone density scan<\/a> recommendation if you:<\/p>\n