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
Explanation
Choice A Reason: This is incorrect because turning off the lights and TV and closing the door may increase the client's anxiety and confusion. The nurse should provide adequate lighting and familiar objects to help orient the client.
Choice B Reason: This is incorrect because using restraints may increase the risk of injury, infection, and psychological distress for the client. The nurse should use restraints only as a last resort and with a physician's order.
Choice C Reason: This is incorrect because asking for a sedative may not address the underlying cause of the agitation. The nurse should use non-pharmacological interventions first, such as calming music, massage, or aromatherapy.
Choice D Reason: This is correct because identifying the cause of the agitation may help resolve it. The nurse should assess for possible triggers, such as pain, hunger, thirst, infection, or environmental factors.
Correct Answer is ["A","B","C","D","E"]
Explanation
Choice A Reason: This is correct because clinical obesity is a risk factor for metabolic syndrome. Clinical obesity is defined by having a body mass index (BMI) of 30 or higher, or a waist circumference of more than 40 inches for men or 35 inches for women. Obesity can increase insulin resistance and inflammation, which can lead to metabolic syndrome.
Choice B Reason: This is correct because elevated blood pressure is a risk factor for metabolic syndrome. Elevated blood pressure is defined by having a systolic blood pressure of 130 mm Hg or higher, or a diastolic blood pressure of 85 mm Hg or higher. High blood pressure can damage the blood vessels and increase the risk of cardiovascular disease, which is associated with metabolic syndrome.
Choice C Reason: This is correct because high triglycerides are a risk factor for metabolic syndrome. Triglycerides are a type of fat that circulates in the blood and provides energy for the cells. High triglycerides are defined by having a level of 150 mg/dL or higher. High triglycerides can increase the risk of fatty liver disease and pancreatitis, which are related to metabolic syndrome.
Choice D Reason: This is correct because hypercholesterolemia is a risk factor for metabolic syndrome. Hypercholesterolemia is defined by having a total cholesterol level of 200 mg/dL or higher, or a low-density lipoprotein (LDL) cholesterol level of 100 mg/dL or higher. LDL cholesterol is also known as "bad" cholesterol because it can build up in the arteries and cause plaque formation and narrowing, which can lead to cardiovascular disease and metabolic syndrome.
Choice E Reason: This is correct because hyperglycemia is a risk factor for metabolic syndrome. Hyperglycemia is defined by having a fasting blood glucose level of 100 mg/dL or higher, or a hemoglobin A1c level of 5.7% or higher. Hemoglobin A1c is a measure of average blood glucose over three months. Hyperglycemia can indicate impaired glucose metabolism and insulin resistance, which are hallmarks of metabolic syndrome.
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