Critical care nurse, CCU RN, intensive care nurse, ICU nurse, ICU nursing, ICU, intensive care, critical care, registered nurse, RN, R.N., nurse, nursing, healthcare, health care, patient care AMN Healthcare Nursing Job ID #3616059. Required qualifications include graduation from an accredited nursing program, an active Massachusetts RN license or compact state license, Basic Life Support (BLS) and Advanced Cardiovascular Life Support (ACLS) certifications, and at least 2 years of recent ICU RN experience.