When a surgeon performs microsurgery, he or she has to use an operating microscope which is reported with code ________.
A. 31561
B. 49906
C. 69970
D. 69990
Answer: D
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Which of the following statements regarding multicycle sprinkler systems is MOST accurate?
A. Distributes water to sprinklers from both mains B. Circulates water for non-fire-protection building services C. Only installed where large stockpiles of materials are found D. Designed to operate repeatedly in response to detection device
Which of the following does not occur when air enters the lungs?
A. Thoracic pressure decreases. B. The diaphragm contracts. C. The diaphragm relaxes. D. The intercostal muscles raise the ribs.
A service that processes data into a standardized billing format and checks for errors prior to submitting a claim is a:
A. health adjudicator. B. health clearinghouse. C. health plan. D. none of these.
In which portion of the brain controls the rhythmicity of respiration?
a. cerebral cortex c. cerebellum b. medulla oblongata d. pons