Updated guidance during Covid-19 coronavirus pandemic recommends following these steps to save a life while staying safe: If someone is unconscious and not breathing normally, call 999. Do not put your face close to theirs. Use a towel or a piece of clothing and lay it over the mouth and nose. Do not give rescue breaths but start hands-only CPR. Use a public access defibrillator if there is one available. For more information visit the Resuscitation Council UK.
This animation explains what a cardiac arrest is, including its causes and symptoms, and what to do if you witness someone having a cardiac arrest. For more information on cardiac arrest, visit: https://www.bhf.org.uk/cardiacarrest