A patient with pheochromocytoma
is admitted to the hospital with severe hypertension. Which nursing intervention is the highest priority?
Administering an alpha-adrenergic blocker as prescribed.
Administering intravenous fluids to maintain hydration.
Monitoring blood glucose levels every 4 hours.
Preparing the patient for immediate surgery to remove the tumor.
The Correct Answer is A
Choice A Reason:
Administering an alpha-adrenergic blocker is the highest priority intervention for a patient with pheochromocytoma and severe hypertension. Pheochromocytoma causes excessive secretion of catecholamines, leading to severe hypertension. Alpha-adrenergic blockers help to control blood pressure by blocking the effects of these catecholamines, thereby reducing vasoconstriction and lowering blood pressure. This intervention is crucial to prevent hypertensive crises and associated complications such as stroke or myocardial infarction.
Choice B Reason:
Administering intravenous fluids to maintain hydration is important but not the highest priority. While maintaining hydration is essential, it does not directly address the severe hypertension caused by pheochromocytoma. Intravenous fluids can help support overall patient stability but do not specifically target the underlying cause of the hypertension.
Choice C Reason:
Monitoring blood glucose levels every 4 hours is a necessary intervention, especially since pheochromocytoma can cause hyperglycemia due to increased catecholamine levels. However, this intervention is not the highest priority compared to controlling the severe hypertension, which poses a more immediate threat to the patient’s health.
Choice D Reason:
Preparing the patient for immediate surgery to remove the tumor is a critical step in the long-term management of pheochromocytoma. However, surgery is not typically performed until the patient’s blood pressure is stabilized with medications such as alpha-adrenergic blockers. Therefore, while surgery is essential, it is not the immediate priority in the acute management of severe hypertension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason:
Macular degeneration primarily affects central vision and is characterized by a gradual loss of vision rather than sudden symptoms. It does not typically cause flashes of light, shadows over the visual field, or floaters. These symptoms are more indicative of a retinal issue.
Choice B Reason:
Cataracts cause clouding of the lens, leading to blurred vision and difficulty seeing at night. However, they do not cause sudden flashes of light, shadows over the visual field, or floaters. Cataracts develop gradually and do not present with acute symptoms.
Choice C Reason:
Glaucoma is associated with increased intraocular pressure, which can lead to gradual loss of peripheral vision. While acute angle-closure glaucoma can cause sudden symptoms, it typically presents with severe eye pain, headache, and nausea, rather than flashes of light and floaters.
Choice D Reason:
Retinal detachment is characterized by the sudden onset of flashes of light, floaters, and a shadow or curtain over the visual field. These symptoms occur because the retina is pulling away from its normal position, which can lead to vision loss if not treated promptly. Immediate medical attention is required to prevent permanent vision loss.
Correct Answer is B
Explanation
Choice A Reason:
Night blindness, or difficulty seeing in low light, is not a primary symptom of macular degeneration. This condition primarily affects the macula, the central part of the retina responsible for sharp, central vision. Night blindness is more commonly associated with conditions like retinitis pigmentosa or vitamin A deficiency.
Choice B Reason:
Central vision loss is the hallmark of macular degeneration. This condition leads to the deterioration of the macula, causing blurred or lost central vision while peripheral vision remains intact. Patients often report difficulty reading, recognizing faces, and performing tasks that require fine visual detail3.
Choice C Reason:
Peripheral vision loss is not typically associated with macular degeneration. This condition affects the central part of the retina, leaving peripheral vision largely unaffected. Peripheral vision loss is more commonly seen in conditions like glaucoma.
Choice D Reason:
Double vision, or diplopia, is not a characteristic symptom of macular degeneration. This condition affects the clarity of central vision but does not typically cause double vision. Double vision can result from issues with the eye muscles or nerves, such as in cases of strabismus or cranial nerve palsies.
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