Nursing Team Roles: The interdisciplinary team consists of neurologists, neurosurgeons, critical care service physicians, RNs, PCAs, health unit coordinators, respiratory therapists, social workers, chaplains, physical and occupational therapists, dietitian, clinical nurse specialists, and nursing education specialists. BLS (Basic Life Support) must be valid for 90 days post start date; acceptable certifications include: American Heart Association (AHA)/ Heartcode® BLS, Military Training Network, Red Cross (CPR/AED for Professional Rescuers and Health Care Providers).