peripheral dual-energy X-ray absorptiometry
peripheral dual-energy X-ray absorptiometryA type of dual-energy X-ray absorptiometry (DEXA) that measures the density of bones in the arms or legs, such as the wrist.
P-DEXA machines are portable and can be used in a doctor's office, produce very low doses of radiation and provide a faster diagnostic turnaround than standard DEXA measurements.
P-DEXA does not measure the density of the bones most likely to break (e.g., hip and spine); it is less effective than DEXA in monitoring the effects of therapy.
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