Bone Mineral Densitometry
is a topic covered in the Davis's Lab & Diagnostic Tests
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BMD, DEXA, DXA, SXA, QCT, RA, ultrasound densitometry.
Dual-energy x-ray absorptiometry (DEXA, DXA): Two x-rays of different energy levels measure bone mineral density and predict risk of fracture.
Single-energy x-ray absorptiometry (SXA): A single-energy x-ray measures bone density at peripheral sites.
Quantitative computed tomography (QCT): QCT is used to examine the lumbar vertebrae. It measures trabecular and cortical bone density. Results are compared to a known standard. This test is the most expensive and involves the highest radiation dose of all techniques.
Radiographic absorptiometry (RA): A standard x-ray of the hand. Results are compared to a known standard.
Ultrasound densitometry: Studies bone mineral content in peripheral densitometry sites such as the heel or wrist. It is not as precise as x-ray techniques but is less expensive than other techniques.
To evaluate bone density related to osteoporosis.
Area Of Application:
Lumbar spine, heel, hip, wrist, whole body.
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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Bone Mineral Densitometry." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425369/all/Bone_Mineral_Densitometry.
Bladh ML, Van Leeuwen AM. Bone Mineral Densitometry. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425369/all/Bone_Mineral_Densitometry. Accessed April 21, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Bone Mineral Densitometry. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425369/all/Bone_Mineral_Densitometry
Bladh ML, Van Leeuwen AM. Bone Mineral Densitometry [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 April 21]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425369/all/Bone_Mineral_Densitometry.
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