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
Explanation
Choice A Reason: This is the correct choice because driving a motorcycle is a high-risk activity that can expose the client to head trauma, especially if they do not wear a helmet. Traumatic brain injury (TBI) is a condition where the brain is damaged by an external force, such as a collision, fall, or assault.
Choice B Reason: This is incorrect because having high blood pressure is not a direct risk factor for traumatic brain injury. High blood pressure can increase the risk of stroke, which is a condition where the brain is damaged by an internal cause, such as a blood clot or hemorrhage.
Choice C Reason: This is incorrect because smoking and having a family history of brain cancer are not risk factors for traumatic brain injury. Smoking and genetic factors can increase the risk of developing brain tumors, which are abnormal growths of cells in the brain.
Choice D Reason: This is incorrect because golfing and driving a golf cart are low-risk activities that do not pose a significant threat to the client's head. Golfing and driving a golf cart may cause minor injuries, such as sprains, strains, or bruises, but not traumatic brain injury.
Correct Answer is A
Explanation
Choice A Reason: This is correct because the patient's Glasgow Coma Scale score is 9. The Glasgow Coma Scale is a tool that assesses the level of consciousness of a patient with a head injury by measuring three parameters: eye opening, verbal response, and motor response. The patient's eye opening score is 3 (opens eyes to verbal command), verbal response score is 4 (confused speech), and motor response score is 2 (withdraws from pain). The total score is the sum of these three scores, which is 9.
Choice B Reason: This is incorrect because the patient's Glasgow Coma Scale score is not 11. To get a score of 11, the patient would need to have a higher motor response score, such as 4 (withdraws to touch) or 5 (localizes to pain).
Choice C Reason: This is incorrect because the patient's Glasgow Coma Scale score is not 15. To get a score of 15, the patient would need to have the highest scores for all three parameters, such as 4 (opens eyes spontaneously), 5 (oriented speech), and 6 (obeys commands).
Choice D Reason: This is incorrect because the patient's Glasgow Coma Scale score is not 13. To get a score of 13, the patient would need to have a higher verbal response score, such as 5 (oriented speech).
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