The nurse educator asks the student nurse to explain the most common causes of blindness in the United States. Which of the following options will the student nurse select as one of the top causes of blindness?
Head trauma
Cardiovascular disease
Syphilis
Diabetic retinopathy
The Correct Answer is D
Choice A Reason: Head trauma is not one of the top causes of blindness in the United States, but rather a possible cause of it. Head trauma can damage the optic nerve, retina, or brain, leading to vision loss or impairment.
Choice B Reason: Cardiovascular disease is not one of the top causes of blindness in the United States, but rather a risk factor for it. Cardiovascular disease can affect the blood supply and oxygen delivery to the eyes, leading to conditions such as glaucoma, macular degeneration, or retinal vein occlusion.
Choice C Reason: Syphilis is not one of the top causes of blindness in the United States, but rather a rare cause of it. Syphilis is a sexually transmitted infection that can affect the eyes, leading to inflammation, scarring, or detachment of the retina.
Choice D Reason: This is the correct choice. Diabetic retinopathy is one of the top causes of blindness in the United States, affecting about 4.1 million adults. Diabetic retinopathy is a complication of diabetes that damages the blood vessels in the retina, leading to bleeding, swelling, or leakage of fluid. It can cause blurred vision, floaters, or blindness if left untreated.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason: Inserting a nasal swab to observe the fluid is contraindicated, as it can introduce infection or increase intracranial pressure. The fluid can be tested for glucose or halo sign to confirm cerebrospinal fluid (CSF) leakage.
Choice B Reason: Suctioning the nose gently with a bulb syringe is also contraindicated, as it can create negative pressure and increase CSF leakage or cause meningitis.
Choice C Reason: This is the correct answer because allowing the drainage to drip onto a sterile gauze pad can prevent contamination and facilitate observation of the amount and characteristics of the fluid.
Choice D Reason: Inserting sterile packing into the nares is not recommended, as it can obstruct the drainage and increase intracranial pressure or infection risk.
Correct Answer is B
Explanation
Choice A Reason: This choice is incorrect. Cranial Nerve VIII is the vestibulocochlear nerve, which is responsible for hearing and balance. It does not affect vision or eye movements.
Choice B Reason: This is the correct choice. Cranial Nerve II is the optic nerve, which is responsible for transmitting visual information from the retina to the brain. It affects visual field and visual acuity, which are measures of peripheral and central vision, respectively.
Choice C Reason: This choice is incorrect. Cranial Nerve I is the olfactory nerve, which is responsible for smell. It does not affect vision or eye movements.
Choice D Reason: This choice is incorrect. Cranial Nerve VII is the facial nerve, which is responsible for facial expressions and taste. It does not affect vision or eye movements.
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