Instead of administering medication in an attempt to dissolve the blood clot that was stopping the blood flow to the heart (thrombolysis), London Ambulance Service personnel are trained to use machinery to diagnose what is wrong and take patients to the nearest specialist centre - even if this means driving past an A&E department.

Have you ever wondered what’s going on inside that ambulance you see screaming past with its sirens on and blue lights flashing? Does it contain a heart attack victim fighting for their life, while trained medical professionals administer emergency treatment?

Or have you considered that it might be yet another ‘maternataxi’ ordered by a woman who can’t be bothered to book a real cab and who then complains she can’t smoke on the way to hospital?