Which of the following diagnostic procedures is used to detect osteoporosis?
A) dual-energy absorptiometry
B) myelography
C) bone scan
D) arthrography
A
Explanation: A dual-energy absorptiometry is a measurement of bone density using a low-dose X-ray for the purpose of detecting osteoporosis. Myelography is the study of the spinal column after injecting opaque contrast material; it is particularly useful in identifying a ruptured disk pinching a spinal nerve. A bone scan is a nuclear medicine procedure especially useful in identifying stress fractures, observing progress of treatment for osteomyelitis, and locating cancer metastases to the bone. An arthrography is a visualization of a joint by radiographic study after injection of a contrast medium into the joint space.
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