Defibrillators
We explain what a defibrillator is, how you use them, why we are campaigning for more defibs in London.
What is a defibrillator?
When someone has a cardiac arrest, the heart stops beating in a normal way and blood is no longer pumped round the body. Without immediate help, they will die.
If you see someone in a cardiac arrest, call 999, start chest compressions and ask someone to find a defibrillator.
A defibrillator is a machine that delivers an electric shock to restart the heart when someone is in cardiac arrest.
You don’t need to be trained to use a defibrillator. When you switch it on, it will give you you clear instructions on what to do.. The device checks the heart rhythm and will only advise a shock if one is needed.
Relevant links
Our London Heartstarters campaign help us fund more community defibrillators in the areas of London that need them most.
Our statement on unlocking defibrillator cabinets allow immediate access in an emergency.
We need more defibrillators
There are around 7,000 defibrillators registered on our database across London but this is not enough. There are some areas with very limited access to a life-saving defibrillator. The more defibrillators in our communities the more lives will be saved.
London Ambulance Service’s defibrillator accreditation scheme offers you guidance and support in buying, storing and using a defibrillator.
Watch this video to learn how to use a defibrillator.
Dr Fenella Wrigley, London Ambulance Service Chief Medical Officer
“When a cardiac arrest happens, every second counts and the key to survival is early chest compressions and early defibrillation.
“More public places need to have defibrillators. They are safe and simple to use and can significantly increase a person’s chances of survival.
“Making sure the public has easy access to defibrillators and the knowledge of basic life support skills will only help to save more lives.”
