GoodSAM app

Good SAM and the London Ambulance Service

The London Ambulance Service has partnered with the internationally acclaimed GoodSAM app, in which clinically trained ambulance staff and members of the public with basic life support skills trained to an LAS standard, can now sign up as volunteers to respond to life-threatening emergency calls, including cardiac arrests.

This ground-breaking project will see the mobilisation of clinically trained London Ambulance Service volunteer responders – paramedics for example – who can respond to alerts via the GoodSAM app on their smartphone about life-threatening calls.

The sooner effective Cardio Pulmonary Resuscitation (CPR) is started, the better the chance of survival for the patient. If a defibrillator is readily available, patients are six times as likely to survive.


  • How does GoodSAM work?

    When an emergency call is directed to the London Ambulance Service Emergency Operations Centre and it is classified to be of a life-threatening nature, details will automatically be sent through to the GoodSAM app, which will alert the nearest volunteer responder who has registered with the app.

    If the responder is available and has already been approved through the governance process administered by London Ambulance Service for its own staff and members of the public with basic life support skills trained to an LAS standard, they can accept the alert via the GoodSAM app and make their way to the location of the incident.

    If the volunteer responder is not in a position to accept the alert, it can be declined and will get diverted through to the next nearest responder.
    The responder will also be advised of the location of the nearest defibrillator. When a public access defibrillator is used in cardiac arrest, the overall survival rate to discharge is 58.6 per cent.

    The GoodSAM app uses GPS technology to alert trained first responders to nearby life-threatening emergencies.

  • Who can volunteer to be a responder?

    Volunteer responders with basic life support skills who are affiliated or trained to an LAS Standard are eligible to register on the GoodSAM app selecting London Ambulance Service as the verifying organisation.

    Those who are not LAS trained or affiliated should select GoodSAM as the verifying organisation.

  • How do I find out more about the GoodSAM App?

    Visit the GoodSAM website for more about the app or contact the London Ambulance Service by emailing