A 57-year-old woman comes to the physician because of repetitive tongue twisting and abnormal movements of the hands and legs that started several days ago. She has a 2-year history of schizophrenia that has been controlled with fluphenazine. Two weeks ago, she was switched to risperidone. Examination shows protrusion of the tongue and smacking of the lips. She makes twisting movements of the arms and frequently taps her right foot. Which of the following is the most likely diagnosis?

Question

Quizplus · Accepted Answer

Eductional Objective: Tardive dyskinesia consists of abnormal involuntary movements of the mouth, tongue, face, extremities, or trunk associated with prolonged exposure to antipsychotics.  Characteristic movements include lip smacking, facial grimacing, tongue protrusions, and choreoathetoid movements of the head, limbs, and trunk.

A 57-Year-Old Woman Comes to the Physician Because of Repetitive