Final answer:
The nurse should suspect Extrapyramidal symptoms (EPS) as a possible adverse reaction. The symptoms of EPS can include spasms or repetitive, involuntary movements of the face and body, which align with the symptoms described in the case of the client admitted to the emergency room.
Step-by-step explanation:
The nurse should suspect Extrapyramidal symptoms (EPS) as a possible adverse reaction.
EPS are movement disorders that can occur as a side effect of antipsychotic medications such as chlorpromazine.
The symptoms of EPS can include spasms or repetitive, involuntary movements of the face and body, which align with the symptoms described in the case of the client admitted to the emergency room.