Fast Five Quiz: Tardive Dyskinesia Differential Diagnosis

Christoph U. Correll, MD


March 17, 2023

Tardive dyskinesia (TD) presents as involuntary movements of the tongue, lips, jaw, face, trunk, and extremities that occur in patients treated with long-term dopaminergic antagonist or partial agonist medications. TD is most common in patients with schizophrenia, schizoaffective disorder, or bipolar disorder who have been treated with antipsychotic medications for long periods (at least 3 months in adults and at least 1 month in older patients). TD occasionally occurs in people without mental illness, especially the elderly who used metoclopramide for gastric problems, and people with fetal alcohol syndrome, other developmental disabilities, and other brain disorders. Diagnosing TD can be challenging because the symptoms can be easily mistaken for symptoms of mental illness or other drug-induced side effects.

Are you aware of the differential diagnosis of TD? Test your knowledge with this quick quiz.


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