Which extrapyramidal symptom would be the nurse's priority concern?

Neuroleptic Malignant Syndrome is the priority concern among extrapyramidal symptoms because it is a life-threatening medical emergency. It presents with hyperthermia, severe muscle rigidity, altered consciousness, and autonomic instability, and can rapidly progress to rhabdomyolysis, renal failure, and death if not treated immediately. Its high mortality rate makes it the most urgent condition requiring prompt recognition and intervention, typically involving discontinuation of the antipsychotic and supportive care or use of dantrolene. Acute dystonia involves sudden, painful muscle contractions such as torticollis or oculogyric crisis and requires treatment with anticholinergic medications, but it is not life-threatening. Tardive dyskinesia consists of repetitive, involuntary movements — particularly of the face and mouth — that develop with long-term antipsychotic use; while potentially disfiguring and distressing, it is not an acute emergency. Akathisia is characterized by intense subjective restlessness and an inability to sit still, which causes significant distress and may increase the risk of medication non-adherence or agitation, but it does not pose the immediate risk to life that Neuroleptic Malignant Syndrome does. Prioritization in nursing always places life-threatening conditions first.