What it means
A specialty credential from the American Association of Critical-Care Nurses (AACN) for registered nurses who care for very ill adult, pediatric or newborn clients. It requires clinical hours in direct critical care and passing an exam, and is renewed every 3 years.
Related terms
registered nurse
A nurse who has passed the NCLEX-RN and holds a state license to practice as an RN.
intensive care unit
A hospital unit that gives close, constant care to people who are critically ill.
RN-BC
Registered Nurse–Board Certified: a credential showing a registered nurse has passed a specialty certification exam from the ANCC.