A nurse is providing teaching to a group of clients about the changes that occur when clients experience cataracts. Which of the following statements should the nurse include in the teaching?
"Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor."
"Vision changes occur when blood vessels leak fluid or blood under a portion of the retina."
"Vision changes occur when the cloudy lens alters the passage of light through the eye."
"Vision changes occur when retinal tissue pulls away from the blood vessels in the eye."
The Correct Answer is C
A) "Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor." This statement describes a mechanism associated with glaucoma, not cataracts. In cataracts, vision changes occur due to the opacity or cloudiness of the lens, not changes in intraocular pressure.
B) "Vision changes occur when blood vessels leak fluid or blood under a portion of the retina." This statement describes a mechanism associated with retinal diseases like diabetic retinopathy, not cataracts. In cataracts, the lens becomes cloudy, affecting the passage of light through the eye.
C) "Vision changes occur when the cloudy lens alters the passage of light through the eye." This statement is correct. Cataracts cause the lens of the eye to become cloudy, which interferes with the passage of light through the eye. This results in vision changes such as blurred vision, glare, and difficulty seeing in low light conditions.
D) "Vision changes occur when retinal tissue pulls away from the blood vessels in the eye." This statement describes a mechanism associated with retinal detachment, not cataracts. In cataracts, the lens becomes opaque, but the retinal tissue remains intact.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Answer: C. "I am not worried. This sort of thing happens all the time to us 'old people.'"
A. "I brought an updated list of all the medications he takes at home to help you and the doctors determine what the cause of this could be."
This response indicates understanding and proactive involvement in the client’s care. An updated medication list is crucial in evaluating potential causes of delirium, as certain medications or interactions can contribute to changes in mental status.
B. "I notified our family members that they should not come visit for a while, until they are better."
This statement reflects an understanding of the need for a calm environment for the client experiencing delirium. Reducing stimuli and visitors can help the client focus on recovery. It indicates the spouse is aware of the potential impact of social interactions on the client’s condition.
C. "I am not worried. This sort of thing happens all the time to us 'old people.'"
This response indicates a need for further teaching. It reflects a possible misunderstanding of delirium as a normal part of aging, which can be dismissive of the seriousness of the condition. Delirium is often a sign of underlying medical issues and should be treated with concern and urgency. Clients and their families need to understand that delirium is not a typical or benign occurrence and requires appropriate evaluation and intervention.
D. "I am trying to stay positive. I know that most people return to normal, but it is hard to see them like this."
This statement indicates a hopeful attitude while acknowledging the difficulty of the situation. It shows understanding that recovery is possible and reflects the spouse's emotional processing of the situation. Maintaining a positive outlook can be beneficial for both the client and the family during recovery.
Correct Answer is B
Explanation
A. "Note if you see any flashing bright lights on the grid." Flashing lights are not typically associated with macular degeneration. This symptom is more commonly associated with conditions like retinal detachment or migraine headaches.
B. "Check to see if the lines on the grid are blurry or distorted." This statement is correct. The Amsler grid is used to detect changes in central vision, which are common in macular degeneration. Patients with macular degeneration may perceive wavy or distorted lines instead of straight lines when looking at the grid, indicating central vision loss.
C. "Monitor for the lines on the grid to change in color or brightness." Changes in color or brightness of the lines on the grid are not typical features of macular degeneration. This statement does not accurately reflect the purpose of using an Amsler grid for macular degeneration.
D. "Watch for floating dark spots on the grid." Floating dark spots (floaters) are not typically associated with macular degeneration. Floaters are more commonly associated with conditions like posterior vitreous detachment or retinal detachment.
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