DEXA

Definition

DEXA (Dual-Energy X-ray Absorptiometry) is a medical imaging technique used to measure bone mineral density and body composition. It is widely utilized to assess risks of osteoporosis and monitor changes in muscle mass and fat distribution.

5 Must Know Facts For Your Next Test

1. DEXA scans are considered the gold standard for diagnosing osteoporosis.
2. The scan involves minimal radiation exposure, making it safe for repeated use.
3. In addition to bone density, DEXA can accurately measure body fat percentage and lean muscle mass.
4. Results from DEXA scans can inform nutritional strategies to improve musculoskeletal health.
5. DEXA is often used in clinical settings to monitor the effectiveness of interventions like diet changes or medications.

Review Questions

• What does a DEXA scan measure besides bone mineral density?
• Why is DEXA considered the gold standard for diagnosing osteoporosis?
• How can results from a DEXA scan influence nutritional strategies?

Related terms

Osteoporosis:

A condition characterized by weakened bones, increasing the risk of fractures.

Body Composition: The percentages of fat, bone, water, and muscle in human bodies.

Bone Mineral Density (BMD): The amount of bone mineral in bone tissue, measured using techniques like DEXA.