Dr Lisa Cunningham is an emergency doctor who specialises in pre hospital care.
She works with the air ambulance service, flying in a helicopter to bring life saving skills straight to the scene of those in need of urgent care.
From cardiac arrests and road accidents to stabbings, Lisa tells Alex what it's really like treating some of the most critically ill patients before they get to hospital.
Content warning: contains references to emergency medical procedures and trauma injuries
In the UK, the Samaritans can be contacted on 116 123. In the US, the National Suicide Prevention Hotline is 1-800-273-8255. In Australia, the crisis support service Lifeline is on 13 11 14. Hotlines in other countries can be found here.
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Thanks to Co op Health for sponosring this series of The Waiting Room. Don't forget to download the Co op Health app today.