The "Big Three" of life-threatening Conditions:

The "Big Three" as they are called are the most important things to watch out for in any emergency situation.

1. Airway obstruction - patient cannot breath and will die within minutes.
2. Uncontrolled bleeding- patient will bleed out and die or at the very least suffer brain or organ damage.
3. Shock- the body's systems shut down and the patient dies.

These are known as the three killers that should always be treated for first and always in the order listed above. Remember to always ask permission to help someone. Only treat or help if they give you their permission. If they are unconscious treat them as necessary to save their life.