Which of the following statements best explains the principle behind a Rinne test for determining hearing loss?
A) Air conduction of sound is normally better than bone conduction of sound.
B) Conduction of sound is intensified in the middle of the forehead.
C) A tuning-fork vibration will not be heard as sound in a child under 2 years of age.
D) Bone conduction of sound is normally better than air conduction of sound.
A
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The nurse is caring for a client with an external fixator that requires pin care twice a day. The nurse observes that there is a new purulent drainage around one of the pins. What intervention should the nurse anticipate doing?
A) Scrubbing the drainage from around the pin site B) Obtaining a culture C) Applying iodine-based solution D) Apply ointment to the pin site.
Which instruction should the nurse give to the parent of a 4-year-old child with bacterial conjunctivitis?
A) The child may attend daycare as long as he does not touch his eyes. B) There is no need to notify daycare because the bacteria does not survive on dry surfaces. C) The parent and child should wash hands frequently. D) There is no need to wash bedding and towels.
A nurse is administering a tuberculosis skin test to a client who has AIDS. Which of the following results should the nurse anticipate when using this screening test?
a. Decreased positive predictive value b. Decreased reliability c. Decreased sensitivity d. Decreased specificity
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