The physician suspects a client has a dermatological infection. Which of the following diagnostics will be ordered to observe color changes to the skin using an ultraviolet light source?

Choice A Reason: This is incorrect because inability to recognize any words may indicate a problem with the auditory cortex, which is the part of the brain that processes sound, not the inner ear. The inner ear consists of the cochlea, which converts sound waves into nerve impulses, and the vestibular system, which helps with balance and orientation.

Choice B Reason: This is correct because loss of balance is a common symptom of an inner ear infection. An inner ear infection can cause inflammation and fluid buildup in the vestibular system, which can disrupt the sense of equilibrium and cause vertigo, dizziness, or nausea.

Choice C Reason: This is incorrect because twitching of the cheek may indicate a problem with the facial nerve, which controls the muscles of facial expression, not the inner ear. The facial nerve runs close to the inner ear, but it is not part of it.

Choice D Reason: This is incorrect because lack of air sound may indicate a problem with the outer or middle ear, which transmit sound waves to the inner ear, not the inner ear itself. The outer ear consists of the pinna and the ear canal, and the middle ear consists of the eardrum and the ossicles.

Choice A Reason: Decreased thickness of tympanic membranes is not a physiological change to hearing in older adult clients. The tympanic membranes are thin and flexible structures that vibrate in response to sound waves. The thickness of the tympanic membranes does not change significantly with age.

Choice B Reason: Decreased tinnitus is not a physiological change to hearing in older adult clients. Tinnitus is a ringing or buzzing sound in the ears that may be caused by various factors, such as noise exposure, ear infections, medications, or aging. Tinnitus may increase or decrease with age, depending on the underlying cause.

Choice C Reason: Decreased ear wax is not a physiological change to hearing in older adult clients. Ear wax is a natural substance that lubricates and protects the ear canal from dust, bacteria, and insects. Ear wax production may vary with age, but it does not affect hearing unless it accumulates and blocks the ear canal.

Choice D Reason: Decreased ability to hear high-frequency sounds is a physiological change to hearing in older adult clients. This is also known as presbycusis, which is a gradual loss of hearing that occurs as part of aging. Presbycusis affects the ability to hear high-pitched sounds, such as consonants, birdsong, or alarms.