A client admitted with an acute exacerbation of Ménière's disease asks the student nurse why he was prescribed diphenhydramine. Which response by the student nurse requires correction by the primary nurse?

Choice A reason: This is incorrect because loss of peripheral vision is not a manifestation of cataracts, but of glaucoma. Glaucoma is a condition that causes increased pressure inside the eye and damage to the optic nerve, which can lead to loss of vision in the outer edges of the visual field. The nurse should assess the client's intraocular pressure and visual field test results to rule out glaucoma.
Choice B reason: This is correct because a decreased ability to perceive colors is a manifestation of cataracts. Cataracts are a condition that causes clouding or opacity of the lens, which is the transparent structure behind the pupil that focuses light onto the retina. Cataracts can reduce the clarity and contrast of vision and make colors appear faded or yellowish. The nurse should ask the client about any changes in color perception or brightness of objects.
Choice C reason: This is incorrect because loss of central vision is not a manifestation of cataracts but of macular degeneration. Macular degeneration is a condition that affects the macula, which is the central part of the retina that is responsible for sharp and detailed vision. Macular degeneration can cause blurred or distorted central vision, difficulty reading or recognizing faces, or dark spots in the visual field. The nurse should assess the client's visual acuity and fundoscopic examination results to rule out macular degeneration.
Choice D reason: This is incorrect because seeing bright flashes of light and floaters is not a manifestation of cataracts but of retinal detachment. Retinal detachment is a condition that occurs when the retina, which is the layer of tissue at the back of the eye that converts light into nerve impulses, separates from its underlying support tissue. Retinal detachment can cause sudden flashes of light, floaters, or shadows in the visual field. The nurse should refer the client to an ophthalmologist immediately if retinal detachment is suspected.

Choice A reason: This is correct because hearing loss is the most common complaint associated with a problem involving the inner ear. The inner ear consists of the cochlea, which is the organ of hearing, and the vestibular system, which is the organ of balance. The inner ear converts sound waves into nerve impulses that are sent to the brain. Any damage or dysfunction of the inner ear can impair hearing and cause hearing loss.
Choice B reason: This is incorrect because tinnitus is not the most common complaint associated with a problem involving the inner ear, but rather a symptom that can occur with various ear problems. Tinnitus is a ringing, buzzing, or hissing sound in the ears that is not caused by an external source. Tinnitus can be caused by exposure to loud noise, ear infections, earwax buildup, aging, or certain medications, but it is not specific to the inner ear.
Choice C reason: This is incorrect because pruritus is not a complaint associated with a problem involving the inner ear, but rather a complaint associated with a problem involving the outer ear. Pruritus is itching of the skin that can be caused by dryness, irritation, infection, or allergy. Pruritus can affect the outer ear, which is the visible part of the ear that collects and directs sound waves into the ear canal, but it has no relation to the inner ear.
Choice D reason: This is incorrect because muffled sounds are not a complaint associated with a problem involving the inner ear, but rather a complaint associated with a problem involving the middle ear. Muffled sounds are sounds that are unclear or distorted due to reduced sound transmission or perception. Muffled sounds can be caused by fluid buildup, inflammation, infection, or perforation of the eardrum in the middle ear, which is the air-filled space between the eardrum and the inner ear that contains three tiny bones that amplify sound vibrations.