A nurse is assisting with teaching a class about physiological changes to hearing in older adult clients. Which of the following should the nurse include?

Choice A rationale In the aging process, the tympanic membrane does not typically decrease in thickness. Instead, it often becomes more translucent, rigid, and sclerotic over time. This increased stiffness can interfere with the efficient conduction of sound waves from the external environment to the ossicles of the middle ear. Since the membrane must vibrate freely to transmit sound accurately, any structural rigidity contributed by age-related fibrous changes results in a gradual decline in overall hearing sensitivity. Choice B rationale While some older adults may experience issues with cerumen impaction, the primary physiological change is not an increase in the volume of ear wax produced. Rather, the wax tends to become drier and harder because the apocrine glands, which produce the lubricating component of cerumen, atrophy with age. This dry wax is less likely to migrate out of the ear canal naturally, leading to blockages, but the underlying change is one of consistency rather than total production. Choice C rationale Tinnitus, characterized by a ringing or buzzing sensation in the ears, generally increases in prevalence among older adults rather than decreasing. It is often a secondary symptom of presbycusis, which is age-related sensorineural hearing loss. As the hair cells in the cochlea degenerate, the brain may compensate for the lack of external sensory input by creating internal sounds. Therefore, a nurse should expect reports of tinnitus to stay the same or worsen with age. Choice D rationale Presbycusis is the most common form of sensorineural hearing loss in the elderly, specifically affecting the ability to hear high-frequency sounds first. This occurs due to the progressive degeneration of the hair cells at the base of the cochlea, which are responsible for processing high pitches. This change makes it difficult for clients to distinguish sibilant consonants like s, f, and t, often making speech sound garbled or mumbled even if the volume seems loud enough.