The clinical manifestations of shock are pale skin, cyanosis, cold and wet limbs, blurred consciousness and even coma, etc. Rescue measures are timely supplementation of blood volume, oxygenation, treatment of primary diseases, correction of electrolyte disorders and so on. Shock is mainly due to a variety of reasons leading to the body’s circulatory function is sharply reduced, microcirculation perfusion is seriously insufficient, thus causing the function of organs and cells abnormal. Clinically, early shock can be manifested as agitation, face, skin pallor, lips cyanosis, wet and cold limbs, etc., medium-term manifestation of indifference, unresponsiveness, decreased urine output, etc., and late stage can be manifested as coma, gastrointestinal hemorrhage, cardiac failure, respiratory failure and so on. Rescue measures are mainly to replenish blood volume, oxygen, active treatment of primary diseases, correct electrolyte disorders, etc. Saline is usually used to replenish blood volume, according to the different causes of shock to treat the primary disease, for hemorrhagic shock need to stop bleeding in a timely manner, and anaphylactic shock needs anti-allergy treatment. Shock is one of the more common clinical emergencies, once found need to go to the hospital emergency department for rescue.