Duration required for the diagnosis of acute and transient psychosis is: (A) 1 week, (B) 2 weeks, (C) 1 month, (D) 6 months
Answer is B. If symptoms are for less than 1 months, it is a transient psychotic disorder or brief psychotic disorder as per DSM. As per ICD 10, acute psychosis is less than 2 weeks duration. Reference: Kaplon and sadock, 11 th edition, synopsis of psychiatry, 11 th edition, pg no. 340