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Hearts: Breathing, Bleeding, Shock, Hypothermia, Frostbite.
Diamonds: Fractures, Wounds, Heat Exhaustion and Heat Stroke, Heart Attack, Bites & Stings, Burns.
Clubs: Preparation, Campsites, Shelters, Fire Starting, Signals.
Spades: Water, Food, Becoming Unlost.
Believe me, this is not something you want to even attempt unless you know exactly what you are doing.