Which of the following diagnostic procedures is useful in identifying a herniated nucleus pulposus?
A) dual-energy absorptiometry
B) myelography
C) bone scan
D) arthrography
B
Explanation: Myelography is the study of the spinal column after injecting opaque contrast material; it is particularly useful in identifying a herniated nucleus pulposus disk pinching a spinal nerve. A dual-energy absorptiometry is a measurement of bone density using a low-dose X-ray for the purpose of detecting osteoporosis. 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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Fill in the missing word in the definition for the key term.
While conducting an endoscopic examination on a client, it is found that the client has acid reflex. Which condition is associated with the gastroesophageal reflux disease (GERD) in which cell injury is reversible?
1. Parkinson's disease 2. Myocardial infarction 3. Barrett's esophagus 4. Hashimoto's thyroiditis
The term ____ means any pathologic change or disease in a muscle
A) myelopathy? B) ?myeloma C) ?myopathy D) ?myocele
Which is correct regarding the physiological mechanism of action of cocaine?
A. The effect is primarily due to inhibition of a specific neurotransmitter reuptake in the brain. B. It stimulates an elevated heart rate and this causes an increased blood flow in the brain which is perceived as euphoria. C. The primary mechanism is through brain cell death. D. The elevated blood pressure is responsible for the alterations in consciousness.