First Appearance:
17/09/2002 (Holby City S4 E50)

An Acute Assessment Unit (AAU) is a ward featured on Holby City. AAU deals with surgical admissions patients as referred on from the Emergency Department ready to be transferred to surgical wards. The ward is usually used in major incidents where the ED has reached capacity.

AAU was the home of the Intensive Treatment Unit (ITU), this was located on AAU from 17/06/2003 (S5 E37) until 11/10/2005 (S7 E52).