A nurse in an ophthalmology clinic is assessing a client who has suspected primary open-angle glaucoma (PAOG). Which assessment finding would support a diagnosis of this type of glaucoma?
Loss of peripheral vision
Opacity of the lens
Decrease in color perception
Pain and purulent discharge
The Correct Answer is A
A. Loss of peripheral vision is a hallmark sign of primary open-angle glaucoma. In POAG, increased intraocular pressure causes damage to the optic nerve, leading to a gradual loss of peripheral vision. This vision loss is often subtle and progresses slowly, making it difficult for individuals to notice until the condition is advanced.
B. Opacity of the lens is characteristic of cataracts, not glaucoma. Cataracts involve the clouding of the eye's natural lens, which leads to blurred vision and difficulties with seeing clearly, particularly in bright light. While cataracts and glaucoma can occur simultaneously, opacity of the lens is not indicative of POAG.
C. Decrease in color perception can be associated with various eye conditions, including age-related macular degeneration (AMD) and certain types of retinal diseases. While it can occur in glaucoma as the disease progresses, it is not the primary or most characteristic sign of POAG.
D. Pain and purulent discharge are more associated with acute conditions such as conjunctivitis (pink eye) or an eye infection, rather than primary open-angle glaucoma. POAG typically presents without pain or discharge, as it is a chronic condition with a gradual onset of symptoms.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Peaked T-waves and a widened QRS complex on an ECG are often signs of hyperkalemia, which is an elevated potassium level in the blood. This can be a serious complication of acute kidney injury (AKI), especially in the oliguric phase when the kidneys are unable to effectively excrete potassium.A
B. While fluid management is important in AKI, administering a bolus of normal saline is not the first priority in the presence of suspected hyperkalemia. The primary concern is to address the electrolyte imbalance.
C. Administering potassium chloride would worsen hyperkalemia and should be avoided.
D. Kayexalate is a medication used to treat hyperkalemia by exchanging sodium ions for potassium ions in the gastrointestinal tract. However, checking the potassium level is the first step in confirming the diagnosis and determining the appropriate treatment.
Correct Answer is D
Explanation
A. While vitamin A can interact with some medications, it does not have a significant effect on verteporfin.
B. Verteporfin does not typically affect blood sugar levels.
C. Verteporfin is usually administered intravenously, so it is not taken orally.
D. Verteporfin is a photosensitizing agent used in photodynamic therapy for age-related macular degeneration. After treatment with verteporfin, the client should avoid sunlight and other intense light for several days to prevent a severe sunburn-like reaction. This is because verteporfin makes the skin and eyes more sensitive to light.
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