Which statement about DEXA preparation is accurate?

Which statement about DEXA preparation is accurate?

• A. No special preparation is needed prior to the test
• B. You must fast for 8 hours before the test
• C. You should drink a large amount of fluids before the test
• D. Calcium supplements must be withheld for 24 hours before

Answer: (A)

No special preparation is needed before a DEXA scan. This test uses low-dose X-ray to measure bone mineral density, and its accuracy isn’t affected by meals, hydration, or calcium intake on the day of the exam. Fasting for 8 hours isn’t required, and drinking large amounts of fluids won’t change the results. There’s also no need to withhold calcium supplements for a day before the test, since the reading reflects bone density rather than stomach or gut calcium content. The practical prep is simple—wear comfortable clothing and remove metal objects or jewelry that could interfere with the images.

No special preparation is needed before a DEXA scan. This test uses low-dose X-ray to measure bone mineral density, and its accuracy isn’t affected by meals, hydration, or calcium intake on the day of the exam. Fasting for 8 hours isn’t required, and drinking large amounts of fluids won’t change the results. There’s also no need to withhold calcium supplements for a day before the test, since the reading reflects bone density rather than stomach or gut calcium content. The practical prep is simple—wear comfortable clothing and remove metal objects or jewelry that could interfere with the images.