A nurse in an ophthalmology clinic is interviewing a client who was referred by his primary care provider for suspicion of cataracts. Which of the following findings is consistent with manifestations of cataracts?
Loss of peripheral vision
A decreased ability to perceive colors
Loss of central vision
Seeing bright flashes of light and floaters
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","D","E"]
Explanation
Choice A reason: This is correct because avoiding swimming underwater can help prevent the worsening of Meniere's disease. Meniere's disease is a disorder of the inner ear that causes episodes of vertigo, tinnitus, hearing loss, and fullness in the ear. Swimming underwater can increase pressure in the ear and trigger an attack. The nurse should advise the client to avoid activities that involve changes in altitude or pressure, such as flying, diving, or climbing.
Choice B reason: This is incorrect because wearing earphones when in crowded places can worsen Meniere's disease. Earphones can increase noise exposure and damage hearing, which is already impaired by Meniere's disease. The nurse should advise the client to avoid loud noises and use hearing aids if needed.
Choice C reason: This is incorrect because keeping eyes open during an acute attack can increase vertigo and nausea. Vertigo is a sensation of spinning or moving when still, which can be caused by Meniere's disease. Keeping eyes open can make vertigo worse by creating a visual mismatch with vestibular signals from the inner ear. The nurse should advise the client to close their eyes or focus on a stationary object during an attack.
Choice D reason: This is correct because sitting or lying down if whirling occurs can help prevent falls or injuries due to vertigo. Whirling is another term for vertigo, which can affect balance and coordination. Sitting or lying down can reduce movement and stabilize posture during an attack. The nurse should advise
the client to avoid driving or operating machinery when experiencing vertigo.
Choice E reason: This is correct because we do not know the exact cause of Meniere's disease. Meniere's disease is thought to be related to abnormal fluid balance or pressure in the inner ear, but what triggers this condition is unknown. The nurse should educate the client about possible risk factors, such as genetics, infections, allergies, autoimmune disorders, or head trauma, but also acknowledge the uncertainty and variability of the disease.
Choice F reason: This is incorrect because damage to the ear from excess noise is not the cause of Meniere's disease. Damage to the ear from excess noise can cause noise-induced hearing loss, which is a type of sensorineural hearing loss that affects the cochlea or the auditory nerve. Meniere's disease is a type of mixed hearing loss that affects both the cochlea and the middle ear. The nurse should not confuse or misinform the client about the cause of their condition.

Correct Answer is D
Explanation
Choice A reason: This is incorrect because increasing her voice when speaking to the client may not prevent complications, but rather annoy or offend the client. The nurse should not assume that a client with a visual impairment has a hearing impairment as well unless it is confirmed by assessment or history. The nurse should speak in a normal tone and volume and identify herself by name and role.
Choice B reason: This is incorrect because lowering the bed rails before lowering the bed may increase the risk of complications, such as falls or injuries. The nurse should keep the bed rails up until the client is ready to get out of bed and lower them only when necessary. The nurse should also lock the wheels of the bed and adjust it to a comfortable height for the client.
Choice C reason: This is incorrect because using hand gestures to point to where the client will walk may not prevent complications, but rather confuse or frustrate the client. The nurse should not use visual cues or gestures that are meaningless to a client with a visual impairment. The nurse should use verbal directions and descriptions instead, such as "The restroom is on your left, about 10 steps away."
Choice D reason: This is correct because standing slightly in front and to one side of the client can prevent complications, such as collisions or falls. The nurse should guide the client by offering her arm or shoulder for support and walking slightly ahead of him or her. The nurse should also warn the client about any obstacles or changes in terrain, such as stairs, doors, or rugs.
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