29. A man seeks medical attention for symptoms that include delirium and sleepiness. When asked specific questions about foods he has ingested, he admits to eating wild mushrooms, but he cannot describe the mushroom. On further questioning, he says that he has not had excessive sweating or experienced hallucinations. Which of the following best describes the expected clinical course?

• Complete recovery within 2 to 6 days
• Spontaneous recovery within 5 to 24 hours
• Alternating periods of drowsiness and excitement for several hours, followed by complete recovery
• Apparent recovery within a few hours, followed by a symptom-free period of 3 to 5 days, and subsequent coma and death