Alcohol was tested and it was negative. What will your next step be?

A 49 year old man lost his job and now he is homeless. He was found wandering in the park. He is muttering that some people are after him. Alcohol was tested and it was negative. What will your next step be?

A. Thiamine

B. Neuropsychiatric analysis

C. Mini mentalstate

D. CThead

E. MRIhead