Recheck the casualty’s blood circulation and nerve function below the wound.
The blood circulation and/or nerve function is impaired if the pulse below the limb is absent or impaired, if the skin or nail beds below the wound are bluish, if the limb below the wound is numb or cool to the touch, or if motor function below the wound is lost.
If possible, compare the area below the wound of the injured limb to the same area on the uninjured limb. If the circulation or nerve function is impaired, loosen the tails with disturbing the dressing and retie the tails. If circulation and nerve function are not restored, evacuate the casualty as soon as possible.