What is the initial treatment for a viral ear infection?
A) Pain relievers and warm compresses
B) Antibiotics
C) Vaccination
D) Surgically inserted plastic tubes
A
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Which of the following statements regarding hoistway doors is LEAST accurate?
A. They may not be equipped with locks to keep them from opening. B. They work in conjunction with car doors and depend on the car doors for power. C. They cannot completely prevent the passage of smoke from the hoistway into the building. D. The addition of a swinging door meets the requirement of a supplementary smoke barrier.
For a 20 cm part thickness, which of the following would accommodate a 6 cm increase in part thickness and maintain radiographic density?
a. Increase the kVp by 12 kVp. b. Increase the mAs by 100%. c. Increase the kVp by 20%. d. either a or b