RATIONALE: By treating psychosis, haloperidol, an antipsychotic drug, decreases agitation. Haloperidol is used to treat dyskinesia in clients with Tourette syndrome and to treat dementia in elderly clients. Tardive dyskinesia may occur after prolonged haloperidol use; the client should be monitored for this adverse reaction.NURSING PROCESS STEP: ImplementationCLIENT NEEDS CATEGORY: Physiological integrityCLIENT NEEDS SUBCATEGORY: Pharmacological and parenteral therapiesCOGNITIVE LEVEL: Knowledge