What is a DEXA scan?

Also known as: DXA, DEXA, dual energy x-ray absorptiometry, bone densitometry.

A DEXA scan (dual X-ray absorptiometry) or a bone density scan/bone densitometry test, is a test that measures bone density and bone loss also called osteopenia. Total body fat percentage is also measured.

The test is important to help predict the risk of fractures and growth disturbances. Children with genetic and acquired chronic diseases, such as renal failure, immobile children, feeding problems, and those taking medications which interfere with calcium absorption.


Reviewed by: Dr. Rachel M Pevsner Crum, DO

This page was last updated on: 1/29/2019 3:21:13 PM

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