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 correct because first degree burns are superficial burns that affect only the outer layer of the skin, called the epidermis. First degree burns cause redness, pain, and mild swelling, but no blisters or scarring. They usually heal within a week.
Choice B Reason: This is incorrect because second degree burns are partial thickness burns that affect both the epidermis and the underlying layer of the skin, called the dermis. Second degree burns cause blisters, severe pain, and possible infection. They may take several weeks to heal and may leave scars.
Choice C Reason: This is incorrect because third degree burns are full thickness burns that destroy all layers of the skin and may damage the underlying tissues, such as muscles, nerves, or bones. Third degree burns cause charred or white skin, numbness, and shock. They require skin grafting and may cause permanent disability or death.
Choice D Reason: This is incorrect because this burn can be classified according to the depth and extent of the skin damage. The classification of burns helps to determine the appropriate treatment and prognosis for the client.
Correct Answer is D
Explanation
Choice A Reason: Colorectal cancer is not likely to cause nausea with projectile vomiting or high-pitched sounds in the left upper quadrant. Colorectal cancer may cause symptoms such as rectal bleeding, change in bowel habits, abdominal pain, or weight loss.
Choice B Reason: Paralytic ileus is a condition where the bowel stops working and does not contract or move food along. Paralytic ileus may cause symptoms such as abdominal distension, absence of bowel sounds, constipation, or vomiting.
Choice C Reason: Large bowel obstruction is a blockage of the colon or rectum that prevents the passage of stool. Large bowel obstruction may cause symptoms such as abdominal distension, low-pitched sounds in the right lower quadrant, constipation, or ribbon-like stools.
Choice D Reason: Small bowel obstruction is a blockage of the small intestine that prevents the passage of food and fluids. Small bowel obstruction may cause symptoms such as nausea with projectile vomiting, high-pitched sounds in the left upper quadrant, abdominal cramps, or dehydration.
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