The call to summon expert help and emergency equipment will either be a 999 call in the UK community setting or a cardiac arrest or 'crash' call in hospital. This will ensure that advanced airway/breathing equipment, a defibrillator and emergency drugs can be dispatched at the earliest opportunity.
Telephoning for assistance relies on the first rescuer assessing the casualty, accurately recognising the arrested state and then responding by summoning help.
Early access will not be achieved if the rescuer:
• chooses not to approach the casualty - real or perceived risks;
• fails to recognise cardiac arrest - inadequate training;
• does not know the number to phone - inadequate training.
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