Fran's Boyfriend Mark Has Been Brought to the Hospital in a Delirious

Multiple Choice

Fran's boyfriend Mark has been brought to the hospital in a delirious state. Mark, age 18, is a first-year college student and has no known psychiatric or medical problems. He seemed fine before going out with his fraternity brothers and he has not been involved in any accident. What might the doctors evaluating Mark initially consider as a possible cause of his delirium?

A) psychoactive drugs
B) an underlying serious medical condition
C) liver disease
D) a seizure disorder