A client on a mental health unit develops flu-like symptoms and low blood pressure. After reviewing the client's history, it was noted that the client has a diagnosis of schizophrenia and is currently taking risperidone (Risperdal). The nurse should recognize that which of the following adverse effects may be occurring?

Choice A reason:Acute dystonia is characterized by sudden muscle contractions, often presenting as abnormal postures. While it is a possible side effect of antipsychotic medications, it does not typically present with flu-like symptoms and low blood pressure.Choice B reason:Tardive dyskinesia involves involuntary, repetitive body movements and usually develops after long-term use of antipsychotic medications. It is not associated with flu-like symptoms or changes in blood pressure.Choice C reason:Pseudoparkinsonism mimics the symptoms of Parkinson's disease, such as tremors, rigidity, and bradykinesia. It can be a side effect of antipsychotic drugs but is not typically accompanied by flu-like symptoms or low blood pressure.Choice D reason:Neuroleptic malignant syndrome (NMS) is a rare but life-threatening reaction to antipsychotic medications. It presents with hyperthermia, muscle rigidity, altered mental status, and autonomic dysfunction, which can include low blood pressure and symptoms resembling the flu¹. NMS is a medical emergency and requires immediate treatment.