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About DEXA Scan Lab Test

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DEXA Scan (Dual X-ray Absorptiometry Scan) is a type of imaging
procedure that uses X-rays to measure bone mineral density (BMD). It is
also known as DXA, bone densitometry or bone density scan. DEXA scan is
mostly performed to diagnose osteoporosis or assess a person’s risk of
developing osteoporosis, a medical condition that causes the bones to
become brittle and increases the likelihood of breakage.

No special preparation is required for a DEXA scan. You may be asked to remove all metal objects from your body or asked to change to a hospital gown before your DEXA scan procedure.

A DEXA scan is a painless procedure and usually takes about 15 minutes. Unlike other scans, which can make you feel claustrophobic, DEXA scan is done in a fairly open environment and exposes you to minimal radiation. DEXA scan is also more effective in finding out areas of low bone mineral density than conventional X-rays. During DEXA scan, you will be made to lie down comfortably on an X-ray table and the scanner is slowly passed over your body. The scanner creates images, which your doctor (radiographer) will evaluate to measure the mineral content of your bones.

DEXA scan results are interpreted by comparing your bone density with the bone density of a healthy person of your age and gender. You will be given a T-score depending on the results of your DEXA scan. T-score greater than or equal to -1.0 indicates normal bone density T-score between -1.0 and -2.5 indicates low bone density T-score less than or equal to -2.5 indicates osteoporosis