Each time an EMT arrives on scene they must obtain consent from the patient, family member or legal guardian of the patient. There are five different types of consent that EMS deals with. Informed, Expressed, Implied, Minor, and Involuntary consent are the five different types of consent.
Informed- Procedures are explained to patient and explicit permission is given by the patient.
Expressed – Patient is informed of assessment, procedures, and related risks
Implied – This is also known as Emergency Doctrine. This consent is used when the patient is unresponsive or incompetent and would consent to emergency care if they could.
Minor – The EMT must obtain consent from a parent or legal guardian. If there is no one present then Implied consent comes into play.