A patient on the psychiatric unit took his first dose of chlorpromazine last night. The following morning, he approaches the nursing station complaining of severe spasms in his neck and back. The psych nurse informs the provider, and can expect an order for which medication?

A) Olanzapine: Olanzapine is an atypical antipsychotic that is used to treat conditions such as schizophrenia and bipolar disorder, but it would not be used to treat severe muscle spasms caused by chlorpromazine. This medication is not appropriate for managing extrapyramidal side effects (EPS) like the muscle spasms described in the question. B) Flumazenil: Flumazenil is a benzodiazepine antagonist used for the reversal of benzodiazepine overdoses or excessive sedation, but it is not indicated for managing the side effects of antipsychotic medications like chlorpromazine. The symptoms described in the question are more related to extrapyramidal symptoms rather than benzodiazepine toxicity. C) Fluphenazine: Fluphenazine is another antipsychotic medication within the same class as chlorpromazine (typical antipsychotics). Administering fluphenazine would not treat the muscle spasms or other side effects caused by chlorpromazine. In fact, it may worsen the symptoms. The focus should be on managing the side effects rather than increasing the antipsychotic dosage. D) Benztropine: Benztropine is an anticholinergic medication used to treat extrapyramidal symptoms (EPS), such as muscle spasms, rigidity, and tremors, which are common side effects of typical antipsychotics like chlorpromazine. This medication would be ordered to relieve the severe neck and back spasms the patient is experiencing as a result of the chlorpromazine.