The practical nurse (PN) is caring for a client receiving a prescription for paroxetine who suddenly exhibits restlessness, tachycardia, fever, and elevated blood pressure. Which action should the PN implement first?

A. Obtain a cooling blanket from the hospital central supply department: While hyperthermia is a concern in serotonin syndrome, obtaining a cooling blanket is a secondary intervention. The priority is to stop the causative agent to prevent worsening of symptoms. B. Administer a prn prescription for benzodiazepine and acetaminophen: Benzodiazepines may help manage agitation and muscle rigidity, and acetaminophen can reduce fever, but these treat symptoms rather than the underlying cause. C. Take the client to a quiet area and provide reassurance: Providing a calm environment may help reduce anxiety and overstimulation, but this action alone does not address the life-threatening physiological effects of serotonin excess, such as hypertension, tachycardia, and hyperthermia. D. Withhold the next dose and contact the health care provider: The client’s symptoms indicate possible serotonin syndrome, a medical emergency. The priority is to stop further administration of paroxetine and notify the healthcare provider immediately for evaluation and potential pharmacologic reversal or supportive care.