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 C
Explanation
Choice A rationale
Calcium and magnesium imbalances are less likely to influence Digoxin's effects compared to potassium and magnesium.
Choice B rationale
While chloride levels are important, potassium is more critical due to its significant impact on Digoxin’s action.
Choice C rationale
Correct, potassium and magnesium levels are crucial as imbalances can potentiate Digoxin toxicity or reduce its efficacy.
Choice D rationale
Sodium and calcium imbalances are less directly related to Digoxin efficacy compared to potassium and magnesium.
Correct Answer is C
Explanation
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.
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