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 C
Explanation
Choice A Reason: This is incorrect because a blister-like pustule on the face that oozes clear fluid may indicate impetigo, which is a bacterial skin infection, not basal cell carcinoma. Basal cell carcinoma is a type of skin cancer that arises from the basal layer of the epidermis, which is the outermost layer of the skin. Basal cell carcinoma lesions are usually not blistered or pustular, but rather smooth, shiny, or waxy.
Choice B Reason: This is incorrect because a dark brown lesion that is flat may indicate a mole, which is a benign growth of melanocytes, which are cells that produce pigment, not basal cell carcinoma. Basal cell carcinoma lesions are usually not dark brown or flat, but rather flesh-colored, pink, or red, and may have a raised or indented center.
Choice C Reason: This is correct because a small scaly, dry lesion on the elbow may indicate basal cell carcinoma. Basal cell carcinoma lesions are often small, scaly, and dry, and may bleed or crust over. They can occur anywhere on the body, but are more common on areas that are exposed to the sun, such as the face, neck, arms, or legs.
Choice D Reason: This is incorrect because location on the top of the head where exposed frequently to sunlight may indicate squamous cell carcinoma, which is another type of skin cancer that arises from the squamous layer of the epidermis, not basal cell carcinoma. Squamous cell carcinoma lesions are usually rough, scaly, or crusted, and may have a firm or hard texture. They can also occur anywhere on the body, but are more common on areas that are exposed to the sun.
Correct Answer is B
Explanation
Choice A reason: This is incorrect because a drop in heart rate from 74 to 68/min is not a manifestation that requires immediate reporting to the provider. A mild decrease in heart rate can be normal or due to other factors such as medication, sleep, or relaxation. It does not indicate a worsening of brain injury or increased intracranial pressure.
Choice B reason: This is the correct answer because a change in the Glasgow Coma Scale score from 14 to 10 is a manifestation that requires immediate reporting to the provider. The Glasgow Coma Scale is a tool that measures the level of consciousness based on eye-opening, verbal response, and motor responses. A score of 14 indicates mild impairment, while a score of 10 indicates moderate impairment. A decrease in score can indicate deterioration of neurological status and increased intracranial pressure, which can be life-threatening.
Choice C reason: This is incorrect because the headache is not a manifestation that requires immediate reporting to
the provider. Headache is a common symptom of mild TBI and can be managed with analgesics, rest, and hydration. It does not indicate a worsening of brain injury or increased intracranial pressure unless it is severe, persistent, or accompanied by other signs such as vomiting, confusion, or seizures.
Choice D reason: This is incorrect because diplopia is not a manifestation that requires immediate reporting to
the provider. Diplopia means double vision and can be caused by damage to cranial nerves or eye muscles due to TBI. It can be treated with eye patches, glasses, or surgery. It does not indicate a worsening of brain injury or increased intracranial pressure unless it is associated with other symptoms such as blurred vision, loss of vision, or eye pain.
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