Current BLS card (through either American Heart Association, Red Cross, or ASHI) or ability to obtain certification before a start date Current BLS card (through either American Heart Association, Red Cross, or ASHI) or ability to obtain certification before a start date. Interacts with all levels of staff in a variety of departments, physicians, patients, families and external contacts, such as employees of other health care institutions, community providers and agencies, concerning the health care of the patient.