Davis C, Engeln A, Johnson EL: Wilderness Medical Society practice guidelines for the prevention and treatment of lightning injuries: 2014 Update Wilderness Environ Med 25 (4 Suppl): S86-S95, 2014. doi: 10.1016 / j. wem.2014.08.011 Symptoms and Signs of Lightning Injuries The electrical charge can cause asystole or other arrhythmias or cause symptoms of brain dysfunction, such as loss of consciousness, confusion, or amnesia.