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 ["D","E"]
Explanation
Choice A Reason: This choice is incorrect. Placing the client into a supine position is not an action that the nurse should take, as it can compromise the airway and increase the risk of aspiration. The nurse should position the client on their side with their head tilted slightly forward to allow saliva and secretions to drain out of their mouth.
Choice B Reason: This choice is incorrect. Applying restraints is not an action that the nurse should take, as it can cause injury and increase agitation. The nurse should protect the client from harm by removing any objects or furniture that may cause harm and padding any hard surfaces with blankets or pillows.
Choice C Reason: This choice is incorrect. Inserting a bite stick into the client's mouth is not an action that the nurse should take, as it can cause injury and obstruction. The nurse should never force anything into the client's mouth during a seizure, as it can damage their teeth, gums, tongue, or jaw.
Choice D Reason: This is a correct choice. Loosening restrictive clothing is an action that the nurse should take, as it can improve breathing and circulation. The nurse should unbutton any tight collars, belts, or ties that may constrict the chest or neck.
Choice E Reason: This is a correct choice. Placing a pillow under the client's head is an action that the nurse should take, as it can prevent injury and provide comfort. The nurse should support the client's head with a soft pillow or cushion to prevent hitting it against any hard surfaces.
Correct Answer is D
Explanation
Choice A Reason: This is incorrect because earphones are not used in the Rinne test. The Rinne test compares air conduction and bone conduction of sound using a tuning fork.
Choice B Reason: This is incorrect because electrodes are not used in the Rinne test. Electrodes are used in electroencephalography (EEG), which measures brain activity.
Choice C Reason: This is incorrect because a probe is not used in the Rinne test. A probe is used in tympanometry, which measures the pressure and mobility of the eardrum.
Choice D Reason: This is correct because a tuning fork is used in the Rinne test. The tuning fork is placed on the mastoid process behind the ear and then moved near the ear canal to compare the sound perception.
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