The patient may be suffering from a substance-induced anxiety disorder. A variety of substances can cause anxiety, including drugs of abuse, medications, alcohol, and caffeine.2 The use of caffeine and other substances should be evaluated during any workup of anxiety symptoms. An electroencephalogram or neurology consult are not indicated given the patients normal physical examination. Lithium and haloperidol are not indicated for the treatment of GAD.
- Assess caffeine intake.
2. Sadock BJ, Sadock VA. Anxiety disorders. In: Synopsis of psychiatry. 9th ed. Philadelphia: Lippincott Williams & Wilkins; 2003:591-642.
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