A nurse is providing teaching to a group of clients about changes that occur when clients experience open-angle glaucoma. Which of the following statements should the nurse include in the teaching?
"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."
"Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor."
The Correct Answer is D
A. "Vision changes occur when blood vessels leak fluid or blood under a portion of the retina": This statement describes a symptom of diabetic retinopathy, not open-angle glaucoma. In open-angle glaucoma, vision changes primarily result from increased intraocular pressure (IOP) due to impaired drainage of aqueous humor, not leakage of fluid or blood under the retina.
B. "Vision changes occur when the cloudy lens alters the passage of light through the eye": This statement describes a symptom of cataracts, not open-angle glaucoma. Cataracts involve clouding of the lens inside the eye, which affects the passage of light and leads to visual disturbances. Open-angle glaucoma, however, primarily affects the optic nerve and visual field due to increased intraocular pressure.
C. "Vision changes occur when retinal tissue pulls away from the blood vessels in the eye": This statement describes a symptom of retinal detachment, not open-angle glaucoma. Retinal detachment occurs when the retina detaches from the underlying layers of the eye, leading to vision changes and potentially vision loss. Open-angle glaucoma, on the other hand, primarily involves increased intraocular pressure and optic nerve damage.
D. "Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor": This statement is accurate. In open-angle glaucoma, vision changes occur due to increased intraocular pressure resulting from inadequate drainage of aqueous humor from the eye. This increased pressure can lead to damage of the optic nerve, resulting in peripheral vision loss and potentially blindness if left untreated.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A"]
Explanation
A. "I should not drive while taking this new medication."
Carvedilol is a beta blocker commonly prescribed for conditions like cardiomyopathy. One of the potential side effects of beta blockers, including carvedilol, is dizziness or drowsiness. These effects can occur, particularly when starting the medication or when the dosage is increased. Therefore, it's crucial for patients to understand that they may experience these symptoms and should avoid activities that require alertness, such as driving or operating heavy machinery, until they are aware of how the medication affects them. This precaution helps ensure their safety and the safety of others on the road.
B. "This new medication may decrease my sex drive."
Sexual dysfunction, including decreased libido or erectile dysfunction, is a recognized side effect of beta blockers like carvedilol. These medications can affect the autonomic nervous system and interfere with normal sexual function in some individuals. It's essential for patients to be aware of this potential side effect and to discuss any concerns with their healthcare provider. Open communication about sexual health can help address any issues that arise and explore alternative treatment options if necessary.
C. "This medication can make me have mood swings."
While mood changes are possible side effects of some medications, including certain classes of antidepressants or corticosteroids, they are not typically associated with beta blockers like carvedilol. Beta blockers primarily affect the cardiovascular system by blocking the effects of adrenaline, leading to decreased heart rate and blood pressure. While some patients may experience fatigue or depression as a side effect of beta blockers, mood swings are not a common manifestation. Therefore, this statement does not accurately reflect the potential side effects of carvedilol.
D. "I may have frequent hiccups while taking this medication."
While gastrointestinal side effects such as nausea, vomiting, or diarrhea are possible with carvedilol, frequent hiccups are not a commonly reported side effect of this medication. Hiccups, though often benign, can occasionally be bothersome or indicative of an underlying issue. However, they are not typically associated with beta blockers like carvedilol. Therefore, this statement does not accurately reflect the potential side effects of the medication.
E. "I may have urinary incontinence while taking this medication."
Urinary incontinence is a potential side effect of beta blockers like carvedilol. These medications can affect bladder function by relaxing the smooth muscle of the bladder and urethra, leading to urinary retention or incontinence in some individuals. Patients should be aware of this possibility and discuss any urinary symptoms with their healthcare provider. Depending on the severity of the symptoms, adjustments to the medication regimen or additional treatments may be necessary to manage urinary incontinence effectively.
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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