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 ["B","E","F"]
Explanation
Choice A Reason: Edema is not a specific finding of a systemic infection, but rather a possible sign of fluid overload or impaired venous return. It can occur due to excessive infusion rate, heart failure, or obstruction of blood flow in or around the central line.
Choice B Reason: This is a correct choice. Purulent drainage at intravenous insertion site is a finding of a local infection that can spread systemically. It indicates bacterial invasion and inflammation of the skin and subcutaneous tissue around the catheter.
Choice C Reason: Redness at insertion site is a finding of a local infection that can spread systemically. It indicates increased blood flow and inflammation of the skin and subcutaneous tissue around the catheter.
Choice D Reason: Nausea is not a specific finding of a systemic infection, but rather a possible side effect of parenteral nutrition or a symptom of another condition. It can occur due to electrolyte imbalance, hyperglycemia, or gastrointestinal disorders.
Choice E Reason: This is a correct choice. Leukocytosis is a finding of a systemic infection that indicates increased production and release of white blood cells in response to infection. It can be detected by a blood test.
Choice F Reason: This is a correct choice. Fever is a finding of a systemic infection that indicates increased body temperature due to activation of the immune system and release of pyrogens. It can be measured by a thermometer.
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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