A nurse observes rhythmic, involuntary facial movements in a client who has been receiving antipsychotic drugs. The client also makes chewing movements and, at times, his tongue protrudes. The nurse interprets these findings as which of the following?
A) Stevens-Johnson syndrome
B) Neuroleptic malignant syndrome
C) Tardive dyskinesia
D) Extrapyramidal syndrome
Ans: C
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Tardive dyskinesia is characterized by rhythmic, involuntary movements of the tongue, face, mouth, or jaw and sometimes the extremities. The tongue may protrude, and there may be chewing movements, puckering of the mouth, and facial grimacing. Extrapyramidal syndrome (EPS), neuroleptic malignant syndrome (NMS), and Stevens-Johnson syndrome do not cause rhythmic, involuntary facial movements.
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