The CCRN Examination (Critical Care Registered Nurse) is a credentialing examination provided by the American Association of Critical-Care Nurses (AACN). This is a specific credentialing exam that demonstrates expertise and proficiency in the field of critical care. It is specific to critical care nurses, and requires a certain amount of hours to be completed, directly caring for patients in the ICU.
ICU and ED nurses are disciplines in nursing, and the CCRN proves proficiency/mastery in critical care nursing. In the emergency department, the CEN (Certification of Emergency Nursing) is the equivalent certification, which we do not provide review for.