A patient diagnosed with schizophrenia is very disturbed and violent. After several doses of haloperidol (Haldol), the patient is calm. Two hours later the nurse sees the patient's head rotated to one side in a stiff position, the lower jaw thrust forward, and drooling. Which problem is most likely?
a. An acute dystonic reaction.
b. Tardive dyskinesia.
c. Waxy flexibility
d. Akathisia
Answer: A