HSHS St. Mary’s is situated on a 21-acre campus overlooking Lake Decatur and offers a broad spectrum of comprehensive health services, including the latest diagnostic equipment, interventional cardiology, surgical and medical intervention, emergency medical care, outpatient radiation therapy, pain management and a sleep center. 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