A nurse is caring for a client who reports a decrease in central vision. The nurse should identify that this is a manifestation of which of the following visual impairments?
Macular degeneration
Glaucoma
Diabetic retinopathy
Cataract
The Correct Answer is A
Choice A Reason: This is correct because 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.
Choice B Reason: This is incorrect because glaucoma is a condition that affects the optic nerve, which is the nerve that connects the eye to the brain and carries visual signals. Glaucoma can cause increased pressure inside the eye, damage to the optic nerve, and loss of peripheral vision.
Choice C Reason: This is incorrect because diabetic retinopathy is a condition that affects the blood vessels in the retina, which is the layer of tissue at the back of the eye that converts light into nerve impulses. Diabetic retinopathy can cause bleeding, swelling, or leakage of fluid in the retina, and loss of vision in any part of the visual field.
Choice D Reason: This is incorrect because cataract is a condition that affects the lens, which is the transparent structure behind the pupil that focuses light onto the retina. Cataract can cause clouding or opacity of the lens, and reduced vision in all parts of the visual field.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason: This is the correct choice. Washing towels, sheets, and pillowcases is a home care instruction that the nurse will offer to the client, as it prevents reinfection and transmission of bacteria or viruses. The client has conjunctivitis, which is inflammation of the conjunctiva or thin membrane that covers the white part of the eye and lines the eyelids. It can be caused by bacteria, viruses, allergies, or irritants.
Choice B Reason: This is an incorrect choice. Using antifungal drops 3 times a day is not a home care instruction that the nurse will offer to the client, as it is not effective for conjunctivitis. Antifungal drops are used for fungal infections of the eye, which are rare and usually occur after trauma or surgery. The client may need antibiotic or antiviral drops, depending on the cause of conjunctivitis.
Choice C Reason: This is an incorrect choice. Scheduling a sexually transmitted infection (STI/STD) exam is not a home care instruction that the nurse will offer to the client, as it is not relevant for conjunctivitis. STIs can affect the eyes, but they usually cause different symptoms, such as redness, pain, or discharge from the urethra or vagina. The client may need to be tested for STIs if they have other risk factors or signs of infection.
Choice D Reason: This is an incorrect choice. Avoiding going outside during daylight hours is not a home care instruction that the nurse will offer to the client, as it is not necessary for conjunctivitis. The client may experience sensitivity to light, but they can wear sunglasses or avoid direct sunlight to protect their eyes. The client should also avoid rubbing or touching their eyes, wear glasses instead of contact lenses, and discard any eye makeup or cosmetics that may be contaminated.
Correct Answer is D
Explanation
Choice A Reason: A heart rate of 122/min is elevated, but not life-threatening. It could be due to pain, anxiety, dehydration, or infection.
Choice B Reason: A urinary output of 25 ml/hr is low, but not critical. It could indicate fluid loss, kidney damage, or inadequate fluid resuscitation.
Choice C Reason: A pain level of 6 on a scale of 0 to 10 is moderate, but not severe. It could be managed with analgesics and non-pharmacological interventions.
Choice D Reason: This is the correct answer because difficulty swallowing can indicate airway obstruction, inhalation injury, or edema of the throat. It can compromise breathing and require immediate intervention.
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