Intensive care units (ICUs) are specialist hospital wards. They provide intensive care treatment and monitoring for people in a critically ill or unstable condition.
ICUs are also sometimes known as critical care units or intensive therapy departments.
A person in an ICU needs constant medical attention and support to keep their body functioning. They may be unable to breathe on their own and have multiple organ failure. Medical equipment will take the place of these functions while the person recovers.
There are several circumstances where a person may be admitted to an ICU. These include after surgery, or following an accident or severe illness.