Which of the following is NOT a typical symptom of tardive dyskinesia?

• A. Drooling
• B. Lip smacking
• C. Rash on the skin
• D. Arm tremors

Answer: (C)

Tardive dyskinesia is a movement disorder caused by long-term use of certain antipsychotic medications. It shows up as involuntary, repetitive movements mainly in the face and mouth—lip smacking, grinding, puckering, tongue thrusting—and can include drooling due to these facial muscle changes. It may also involve occasional tremors or involuntary movements of the limbs. A rash on the skin, by contrast, is not a motor symptom and does not reflect tardive dyskinesia. So the skin rash is not a typical symptom.