A client is receiving benztropine mesylate for drug-induced extrapyramidal syndrome (EPS). Which finding indicates that the nurse should further evaluate the client?

A. Presence of a dry mouth: Dry mouth is a common anticholinergic side effect of benztropine and generally does not indicate a worsening of EPS. It can be managed with frequent oral care, sugar-free gum, or fluids. B. Decreasing hand tremors: Reduction in tremors indicates that benztropine is effectively controlling drug-induced extrapyramidal symptoms. This finding reflects a positive therapeutic response rather than a complication. C. Increased mouth movements: New or worsening involuntary movements of the mouth, lips, or tongue may indicate the development of tardive dyskinesia, a potentially irreversible form of EPS. This requires further evaluation by the healthcare provider and possible adjustment of the antipsychotic regimen. D. Decreased bowel movements: Constipation is a common anticholinergic side effect of benztropine. While uncomfortable, it is expected and manageable with diet, fluids, and activity, and does not signify worsening EPS.