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 D
Explanation
Choice A rationale
Clonic-tonic muscle contraction is related to convulsions and seizures but does not accurately define epilepsy. Epilepsy is a neurological disorder characterized by recurrent seizures due to abnormal electrical activity in the brain.
Choice B rationale
Epilepsy involves abnormal electrical discharges in the brain, not in the muscles. Muscle contractions are a symptom of seizures, not the cause of epilepsy.
Choice C rationale
Epilepsy is not a single disease; it encompasses various conditions characterized by recurrent seizures. It is a spectrum of disorders with different causes and manifestations.
Choice D rationale
This choice accurately describes epilepsy as characterized by sudden, recurrent, and transient disturbances in brain function due to abnormal electrical discharges in the brain.
Correct Answer is B
Explanation
Choice A rationale
Administering a non-steroidal anti-inflammatory drug (NSAID) is not a priority action for a patient who has received a narcotic analgesic. The priority should be to ensure the patient’s safety and prevent falls, which can occur due to the sedative effects of narcotics.
Choice B rationale
Putting side rails up and placing the bed in the lowest position is essential for patient safety. Narcotics can cause dizziness, drowsiness, and impaired coordination, increasing the risk of falls. Ensuring the bed is in the lowest position and side rails are up helps prevent injury if the patient tries to get up.
Choice C rationale
Encouraging fluids is beneficial for many patients, but it is not the priority action when a patient has received a narcotic analgesic. Hydration is important but secondary to ensuring the patient’s immediate safety.
Choice D rationale
Creating a restful, dark environment may help the patient rest, but it does not directly address the immediate safety needs of a patient who has received a narcotic analgesic. The focus should be on preventing falls and injury.
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