A nurse is teaching a client about diagnostic vision tests. The nurse should include that which of the following tests is performed to diagnose macular degeneration?
Amsler grid.
Snellen chart.
Intraocular pressure.
Refraction test.
The Correct Answer is A
Choice A reason: This is the correct answer because the Amsler grid test is performed to diagnose macular degeneration. The Amsler grid is a pattern of straight lines with a dot in the center. The client is asked to look at the dot and report any distortions or missing areas in the grid. This can indicate damage to the macula, which is the central part of the retina that provides sharp vision.
Choice B reason: This is incorrect because the Snellen chart test is not performed to diagnose macular degeneration. The Snellen chart is a chart of letters of different sizes that are read from a distance. The client is asked to read the smallest line they can see clearly. This can indicate visual acuity or sharpness of vision, but not macular degeneration.
Choice C reason: This is incorrect because the intraocular pressure test is not performed to diagnose macular degeneration. The intraocular pressure test measures the pressure inside the eye using a device called a tonometer. The client may feel a puff of air or a gentle touch on their eye. This can indicate glaucoma, which is a condition where increased pressure damages the optic nerve, but not macular degeneration.
Choice D reason: This is incorrect because the refraction test is not performed to diagnose macular degeneration. The refraction test measures how well the eye bends light rays using a device called a phoropter. The client looks through different lenses and reports which ones make their vision clearer. This can indicate refractive errors such as nearsightedness, farsightedness, or astigmatism, but not macular degeneration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason: Soft pasty stool is normal for a transverse colostomy, as the stool has not reached the sigmoid colon where most of the water is absorbed.
Choice B Reason: This is the correct answer because purple discoloration of the stoma indicates ischemia or necrosis, which can lead to infection, perforation, or sepsis. It requires urgent intervention.
Choice C Reason: Stoma is beefy red is a normal finding for a healthy stoma, as it indicates adequate blood supply and healing.
Choice D Reason: There is skin excoriation around the stoma is a common complication of a colostomy, as the stool can irritate the skin. It can be managed with proper skin care and appliance fitting.
Correct Answer is D
Explanation
Choice A reason: Resting in bed for at least 2 days is not necessary after cataract surgery. The client should resume normal activities as soon as possible, but avoid strenuous activities that increase intraocular pressure.
Choice B reason: Deep breathing and coughing four times a day are not related to cataract surgery. This is a technique to prevent respiratory complications after abdominal or thoracic surgery.
Choice C reason: After two days, a creamy discharge is not normal. This could indicate an infection or inflammation of the eye. The client should report any changes in vision, pain, redness, swelling, or discharge to the provider.
Choice D reason: Keeping the head up and straight is the correct instruction. This helps to prevent increased intraocular pressure and bleeding in the eye. The client should also avoid rubbing or touching the eye, wearing sunglasses to protect from bright light, and using prescribed eye drops as directed.
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