Advanced Cardic care unit or cardiac intensive care unit is a hospital ward specialized in the care of patients with heart attacks, unstable angina, cardiac dysrhythmia and various other cardiac conditions that require continuous monitoring and treatment.
Acute Cardiac care units (ACCUs), also called "critical Cardiac care units" (CCCUs), are equivalent to intensive care in the level of service provided. Patients with acute infarction, shock caused by cardiac arrest, or post-operative "open-heart" patients commonly abide here.
Sub acute Cardiac care units (SCCUs), also called progressive care units (PCUs), intermediate Cardiac care units (ICCUs), or stepdown units, provide a level of care intermediate to that of the intensive care unit and that of the general medical floor. These units typically serve patients who require cardiac telemetry, such as those with unstable angina.