Which of the following would be the most appropriate action while treating a patient who overdosed on risperidone (Risperdal) 20 minutes ago?
1. Administer a CNS depressant.
2. Administer an anticholinergic.
3. Administer activated charcoal.
4. Symptom management is the only indicated treatment.
Correct Answer: 3
Rationale1: Activated charcoal will bind the Risperdal that has not been absorbed and prevent absorption into the bloodstream. Symptom management might be warranted, but given that the overdose occurred only 20 minutes ago, charcoal likely will be effective, and should be used. Anticholinergic agents and CNS depressants likely will worsen symptoms.
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