Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
In fourth degree frostbite, the muscles, tendons, blood vessels, and nerves all freeze. Deep frostbite like this results in areas of purplish blisters which turn black and which are generally blood-filled but may be filled with clear or milky-coloured liquid. Nerve damage in the area can result in a loss of feeling. This extreme and very serious frostbite may result in amputation of the affected parts, e.g. fingers and toes, if the area becomes infected with gangrene. The extent of the damage can take several months to assess, and this often delays surgery to remove the dead tissue.O.3.4.3TreatmentO.3.4.3.1GeneralO.3.4.3.1.1 Prevention is better than cure, see O.3.5, but if frostbite does occur, the guidance in O.3.4.3 should be helpful.O.3.4.3.1.2 Consideration should be given to standard first aid protocols for other medical conditions, e.g. injuries. Treatment should be carried out in a safe area and only by someone who is medically competent.