A nurse is caring for a client who has a serious mental illness and has developed tardive dyskinesia from antipsychotic use. Which of the following adverse effects from antipsychotic medication use would be expected for the client?

Choice A reason: Hallucinations and delusions are symptoms of the underlying psychiatric disorder, not adverse effects of antipsychotic medications. They are not characteristic of tardive dyskinesia. Choice B reason: Nausea and vomiting can occur with antipsychotic medications but are nonspecific side effects. They do not define tardive dyskinesia, which is a movement disorder. Choice C reason: Tardive dyskinesia is characterized by involuntary, repetitive movements, especially of the mouth, tongue, and face. These include lip smacking, grimacing, and tongue protrusion. This is the hallmark adverse effect expected in this client. Choice D reason: Seizures and tremors may occur with certain medications but are not the defining features of tardive dyskinesia. Tremors are more associated with Parkinsonism, another extrapyramidal side effect.