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A “Patient-Care Area” (or “vicinity”) is defined by the NEC as an area within a healthcare facility intended for patient examination and treatment. The center of a patient-care area is the normal location of the bed, chair, table, treadmill, or other device that supports the patient during examination and treatment. The perimeter of a patient-care area extends in a six foot (1.83 m) radius horizontally beyond the center point where the patient is being examined or treated. The height of a patient-care area is 7 feet 6 inches (2.29 m) above the floor. The NEC's regulatory perimeter concerns the potential shock hazard to patients as they routinely come in contact with electrical devices within patient-care areas. Patient-care areas include those providing both general and critical care. General patient-care areas such as patient bedrooms, examination rooms, treatment rooms, clinics, and similar areas where patients come in contact with ordinary devices such as nurse call systems, electrical beds, examining lamps, telephone, or entertainment devices and electromedical equipment. Critical patient-care areas include special care units such as intensive care units, delivery rooms, operating rooms, coronary care units, angiography labs, and other areas where patients will be subjected to invasive procedures and connected to on-line electromedical devices.
