The en route assessment starts when the patient is loaded in the ambulance. En route assessment begins with a repeat of the initial assessment and ensuring that the patient still has a patent airway, breathes or is being properly ventilated, and has a pulse. This is known as "taking (or checking) vitals."
Communications
EMS uses dedicated MED channels to communicate. EMS care providers should always inform other members of the system of their whereabouts, actions and status of a patient. This may include calling medical control or radioing ahead to the hospital to advise them that they should prepare to receive the patient, calling for air transport of a critical patient, or asking for law enforcement on the scene. Communication