Which of the following diagnostic procedures is used to detect osteoporosis?
A) dual-energy absorptiometry
B) myelography
C) bone scan
D) arthrography
A) dual-energy absorptiometry
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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Which of the following statements regarding bronchial tubes is FALSE?
A) Each bronchus is surrounded by pulmonary capillaries. B) Gas exchange occurs across the respiratory membrane. C) The trachea splits into a left and right main bronchus. D) Alveoli are located at the tips of bronchioles.
What is the MAJOR function of cardiac glycosides?
a. They act directly on the myocardium to increase the force of myocardial contractions. b. They speed up the heart rate to reduce cardiac output. c. They improve glucose in the myocardial cells. d. They assist with vasodilation of the cardiac vessels.
What does the prefix endo- mean?
A) around B) within C) through D) over
A holistic stress management program is:
A. Standardized B. Suits a broad spectrum of personal preferences C. Multidimensional D. All of the above