Wrap the amputated part in a dry, sterile gauze or clean cloth. Put the wrapped part in a plastic bag or waterproof container. Place the plastic bag or waterproof container on ice. The goal is to keep the amputated part cool but not to cause more damage from the cold ice.
Wrap the limb in a sterile and dry bandage, if it needs to be reattached you need to seal the limb or organ in a sealable bag and put on ice as soon as possible to prevent decomposition of the cells and stop any further decay of the limbs, nerves and blood vessels