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It's D. One in five patients achieves sustained recovery.

Explanation: Studies of the course of schizophrenia find a range of disability and illness chronicity. Most patients who experience a first episode of psychosis will experience symptomatic remission, but almost all will later have a relapse. However, as many as one of every five people who develop a schizophrenic disorder will have a sustained recovery, and a small proportion will completely recover and may never have a relapse. Ultimately, about one-third of patients achieve a relatively good outcome with only mild symptoms and functional impairments, with the remainder having moderate to severe symptoms and functional impairments.

Muskin PR and Dickerman AL, eds. Study Guide to Psychiatry: A Companion to the American Psychiatric Publishing Textbook of Psychiatry, Sixth Edition. Arlington, VA: American Psychiatric Association Publishing; 2015: 34, 222. Click here to purchase. Members can purchase at a discount.