An oral biopsy was taken from the tongue of a 36-year-old woman and was interpreted as a leiomyoma. This is a:
a. Benign neoplasm of smooth muscle
b. Malignant neoplasm of skeletal muscle
c. Reactive hyperplasia
d. Benign tumor of salivary gland origin
e. Congenital lesion of lymphatic vessels
A
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If a communications system is described as "trunked," it means that all frequencies are:
a. independent. b. divided by jurisdiction. c. pooled. d. divided into UHF and VHF.
All of the following are true of supplementary terms in an ICD-9-CM entry EXCEPT that they:
A. are essential to the selection of the correct code. B. aid the coder in finding the correct term. C. can be in parentheses. D. can be in brackets.
All of the following are components of a three-prong electrical plug EXCEPT:
a. current convertor b. ground pin c. negative (neutral) d. positive (hot)
To produce x-rays, the incoming line voltage must be controlled and changed to a direct current of many thousands of volts. This is accomplished by the:
A) primary circuit. B) secondary circuit. C) high-voltage transformer. D) line voltage compensator.