Progressive care nurse, PCU RN, PCU, progressive care, progressive care unit, patient care, PCU nurse, nurse, nursing, RN, R.N., registered nurse, healthcare, health care, hospital, step down nurse, telemetry nurse, ER holding A Progressive Care Unit (PCU) Nurse (also known as a step-down, intermediate, or telemetry nurse) at HealthPark cares for patients who are too sick for a general medical-surgical floor, but do not need full Intensive Care Unit (ICU) life support.