A client's chart indicates that they are legally blind. Which of the following is the definition of legally blind?
Full vision loss in at least one eye
The best-corrected vision in the better eye of 20/200 or less
Inability to see clearly from 200 feet away without corrective lenses
Bilateral visual impairment of 20/60 or greater
The Correct Answer is B
Choice A Reason: This is incorrect because full vision loss in one eye does not necessarily mean that the person is legally blind. Legal blindness depends on the visual acuity and visual field of both eyes.
Choice B Reason: This is correct because legal blindness is defined by the World Health Organization (WHO) as having a visual acuity of 20/200 or worse in the better eye with the best possible correction, such as glasses or contact lenses. This means that the person can see at 20 feet what a normal person can see at 200 feet.
Choice C Reason: This is incorrect because inability to see clearly from 200 feet away without corrective lenses may indicate nearsightedness or myopia, but not legal blindness. Nearsightedness can be corrected with lenses or surgery.
Choice D Reason: This is incorrect because bilateral visual impairment of 20/60 or greater does not meet the criteria for legal blindness. Visual impairment is defined by WHO as having a visual acuity of less than 20/60 but better than 20/200 in the better eye with the best possible correction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason: Antibiotics are not contraindicated for a client with glaucoma and asthma, as they can treat or prevent infections that may affect the eye or the respiratory system.
Choice B Reason: This is the correct answer because non-selective beta blockers are contraindicated for a client with glaucoma and asthma, as they can reduce intraocular pressure but also cause bronchoconstriction and exacerbate asthma symptoms.
Choice C Reason: NSAIDs are not contraindicated for a client with glaucoma and asthma, as they can reduce inflammation and pain that may affect the eye or the respiratory system.
Choice D Reason: Anticoagulants are not contraindicated for a client with glaucoma and asthma, as they can prevent or treat thromboembolic events that may affect the eye or the respiratory system.
Correct Answer is B
Explanation
Choice A Reason: This is correct because eating frequent small meals can help the client with IBS to avoid overloading the digestive system and triggering diarrhea. The nurse should advise the client to eat slowly and chew well, and avoid foods that are spicy, fatty, or gas-producing.
Choice B Reason: This is incorrect because increasing the intake of leafy greens and other sources of dietary fiber can worsen diarrhea by increasing stool bulk and motility. The nurse should advise the client to limit or avoid high-fiber foods, such as whole grains, fruits, vegetables, nuts, and seeds, during acute flare-ups of IBS. The client can gradually reintroduce fiber when the symptoms subside.
Choice C Reason: This is correct because increasing fluids can help the client with IBS to prevent dehydration and electrolyte imbalance caused by diarrhea. The nurse should advise the client to drink at least 8 glasses of water per day and avoid caffeinated, alcoholic, or carbonated beverages that can irritate the bowel or cause gas.
Choice D Reason: This is correct because taking prescribed medications on schedule can help the client with IBS to regulate bowel patterns and reduce diarrhea. The nurse should instruct the client on how to use medications, such as antidiarrheals, antispasmodics, or probiotics, as ordered by the provider. The nurse should also monitor the client for any adverse effects or interactions of the medications.
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