AACN American Association of Critical Care Nurses. AACN provides resources for critical care nurses through journals, products, peer networking, continuing education and other services. The world's largest specialty nursing organization whose membership is composed of nurses who care for acutely and critically ill patients.

The ACCCN represents over 2, 500 critical care nurses nationally. Our members in emergency, coronary care, high dependency, cardiothoracic and general intensive care units, and academic and educational settings.

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