A child needs hearing assessments. To assess air and bone conduction of sound, which assessment technique is most appropriate?
A. Have the child place a block into a box each time he or she hears a sound.
B. Place a probe into the ear canal and measure the amount of sound reflected.
C. Strike a tuning fork and place the handle against the back of the child's head.
D. Strike a tuning fork, place it on the mastoid process, then move it to within1 inch of the ear canal.
ANS: D
Air and bone conduction of sound are assessed with both the Weber test and the Rinne test. The Rinne test uses as vibrating tuning fork placed against the child's mastoid process. When the child can no longer hear the fork, the nurse moves it to within 1-2 inches of the auditory meatus. The child should hear this sound twice as long as the bone-conducted sound. The Weber test uses the vibrating tuning fork placed against the midline on top of the child's head. Engaging in a play activity related to hearing sounds is called conditioned-play audiometry and assesses hearing. Using a probe in the ear canal is called tympanometry and assesses the status of the middle ear.
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