The nursing instructor asks the student nurse to explain the action of sumatriptan.
What is the student's best response?
Vasodilation of peripheral blood vessels.
Depresses pain response in the central nervous system.
Vasoconstrictive on cranial blood vessels.
Binds to acetylcholine receptors to prevent nerve transmission.
The Correct Answer is C
Choice A rationale
Sumatriptan does not cause vasodilation of peripheral blood vessels. Instead, it has vasoconstrictive properties.
Choice B rationale
Sumatriptan does not depress pain response in the central nervous system. Its primary action is on the cranial blood vessels.
Choice C rationale
Sumatriptan is a selective serotonin receptor agonist that causes vasoconstriction of cranial blood vessels, relieving migraine headaches.
Choice D rationale
Sumatriptan does not bind to acetylcholine receptors or prevent nerve transmission. It specifically targets serotonin receptors in cranial blood vessels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Assessing pulses and blood pressure is crucial before administering an antiarrhythmic agent because these drugs can affect heart rate and blood pressure, requiring close monitoring to prevent adverse effects.
Choice B rationale
While assessing breath sounds is important in overall patient care, it is not the priority before administering antiarrhythmic agents as these drugs primarily affect the cardiovascular system.
Choice C rationale
Assessing mental status is important in patient care, but it is not the priority before administering an antiarrhythmic agent, as these medications primarily influence cardiovascular parameters.
Choice D rationale
Assessing urine output is vital for monitoring kidney function and fluid balance, but it is not the priority before administering an antiarrhythmic agent, which mainly affects heart rhythm and blood pressure.
Correct Answer is C
Explanation
Choice A rationale
Constipation can be a side effect of Parkinson's disease and dopaminergic medications, but it is not a primary safety concern compared to the risk of injury.
Choice B rationale
Risk for injuries related to cardiovascular effects and peripheral vascular disease is a concern, but the risk of orthostatic hypotension presents a more immediate danger for falls.
Choice C rationale
Parkinson's disease and its treatments can cause orthostatic hypotension, significantly increasing the risk of falls and injury. This risk needs to be carefully managed in the patient's care plan.
Choice D rationale
Diarrhea is not commonly associated with Parkinson's disease or its treatments. Constipation is more prevalent due to both the disease and dopaminergic medication effects.
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