A nurse is preparing to conduct an audiometry test on a client who reports difficulty hearing in noisy environments. Which nursing action best supports obtaining accurate results during this assessment?

Choice A rationale Instructing the client to say yes aloud is suboptimal because vocalization can create internal bone conduction noise and vibrations that interfere with the client's ability to hear the next subtle tone. In audiometry, a non-verbal response such as raising a hand or pressing a button is preferred. This ensures that the client remains quiet and focused, allowing for the detection of the lowest possible decibel levels without the distraction or physical noise of their own voice. Choice B rationale Performing the test in a room with ambient noise is incorrect because audiometry must be conducted in a sound-attenuated booth or a very quiet environment to ensure accuracy. Ambient noise can mask the test tones, leading to a false elevation of the hearing threshold and an inaccurate diagnosis of hearing loss. While the client's complaint involves noisy environments, the purpose of this specific test is to determine the absolute hearing threshold for various frequencies under controlled conditions. Choice C rationale Using an otoscope to identify obstructions is a standard preliminary step in an ear assessment, but it is not the action that best supports the accuracy of the audiometry results themselves. While checking for cerumen impaction is important for overall ear health, the technical accuracy of the audiometer test depends more on the controlled environment and the client's inability to see the examiner's movements. An otoscopy ensures the path is clear, but it does not validate the audiometric findings. Choice D rationale Ensuring the client faces away from the examiner is a critical nursing action to prevent the client from using visual cues to guess when a tone is being presented. If a client sees the examiner press a button or move their hand, they may respond based on sight rather than sound, leading to false positive results. Correct headphone placement is also essential to ensure that the sound is delivered directly to the ear canal at the intended intensity and frequency.