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 D
Explanation
Choice A Reason: Culture is not a diagnostic test that uses an ultraviolet light source, but a laboratory test that involves growing microorganisms from a sample of body fluid or tissue. Culture can help identify the type and sensitivity of the infection-causing agent.
Choice B Reason: KOH is not a diagnostic test that uses an ultraviolet light source, but a chemical test that involves applying potassium hydroxide to a sample of skin, hair, or nail. KOH can help diagnose fungal infections by dissolving the keratin and revealing the fungal elements under a microscope.
Choice C Reason: Diascopy is not a diagnostic test that uses an ultraviolet light source, but a physical test that involves applying pressure to a lesion with a glass slide or lens. Diascopy can help differentiate between blanchable and non-blanchable lesions, such as erythema or petechiae.
Choice D Reason: Wood's is a diagnostic test that uses an ultraviolet light source, also known as a Wood's lamp or black light. Wood's can help observe color changes to the skin that are not visible under normal light, such as fluorescence or hypopigmentation. Wood's can help diagnose conditions such as tinea capitis, vitiligo, or erythrasma.
Correct Answer is D
Explanation
Choice A Reason: To administer medications and electrolytes is not the best reply for why the client will need the NG tube, because this is not the primary purpose of the NG tube in this case. The NG tube is mainly used to relieve gastric distension and prevent vomiting and aspiration. Medications and electrolytes can be given through the IV route.
Choice B Reason: To dilate the stomach as a presurgical preparation is not the best reply for why the client will need the NG tube, because this is not a valid indication for the NG tube in this case. The NG tube is mainly used to relieve gastric distension and prevent vomiting and aspiration. Dilation of the stomach is not a goal of presurgical preparation, but rather an adverse effect of gastric obstruction.
Choice C Reason: You will not be able to eat for several days is not the best reply for why the client will need the NG tube, because this is not a complete or accurate explanation of the NG tube in this case. The NG tube is mainly used to relieve gastric distension and prevent vomiting and aspiration. The client will not be able to eat for several days because of the NPO diet, which is necessary to rest the inflamed peritoneum and reduce the risk of complications.
Choice D Reason: To remove secretions and decompress your stomach is the best reply for why the client will need the NG tube, because this is a clear and correct explanation of the NG tube in this case. The NG tube is mainly used to relieve gastric distension and prevent vomiting and aspiration, which are common symptoms of acute peritonitis. By removing secretions and decompressing the stomach, the NG tube can reduce pain, inflammation, and infection in the abdominal cavity.
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