An outpatient clinic that has been receiving haloperidol (Haldol) for 2 days develops muscular rigidity, altered consciousness, a temperature of 103, and trouble breathing on day 3. The LPN/LVN interprets these findings as indicating which of the following?
Correct Answer: A
Rationale: Neuroleptic Malignant Syndrome (NMS) is a life-threatening condition characterized by hyperthermia, muscle rigidity, altered consciousness, and autonomic dysregulation. It is a rare but serious side effect of antipsychotic medications like haloperidol (Haldol). NMS requires immediate intervention, including discontinuation of the offending medication and supportive care. Tardive dyskinesia (Choice B) is a different condition characterized by involuntary movements of the face and extremities that can occur with long-term antipsychotic use. Extrapyramidal adverse effects (Choice C) encompass a range of movement disorders like dystonia, akathisia, and parkinsonism that can result from antipsychotic medications, but they do not present with hyperthermia and altered consciousness as in NMS. Drug-induced parkinsonism (Choice D) is a form of parkinsonism caused by certain medications, but it typically presents with symptoms similar to Parkinson's disease, such as tremor, bradykinesia, and rigidity, without the severe hyperthermia and autonomic dysregulation seen in NMS.