A client experiencing an acute dystonic reaction presents with a laryngeal spasm. Which treatment should the nurse prepare?

A. Benztropine is an anticholinergic medication that is effective in rapidly treating acute dystonic reactions, including laryngeal spasms, which can be life-threatening. It works by counteracting the imbalance of neurotransmitters caused by certain medications. B. Divalproex is used for mood stabilization and seizure control but is not effective in treating acute dystonic reactions. C. Lorazepam, while useful for anxiety and agitation, is not the first-line treatment for dystonic reactions and does not address the underlying neurotransmitter imbalance. D. Isotonic crystalloid fluids are important for hydration but do not treat the cause of the dystonic reaction.