There are actually 2 different answers to that question. First, if the paramedic unit is on another detail, the fire truck responds to begin care for the sick or injured patient. Either one of our other paramedic units respond from another station or mutual aid units are used. Secondly, The paramedic unit responds with 2 personnel. If the patient is unconscious or the crew thinks that they may need more help the fire truck will respond for assistance.