Shock diagnostic criteria: First, there are very obvious causes of shock. Second, there are abnormal consciousness shock early, can appear more mental hyperactivity or more excited state, shock in the late stage will appear very poor mental, serious will appear coma and other conditions. Third, the pulse is relatively fine, more than 100 times / minute, or the pulse is very fine, basically can not feel. IV. The extremities are wet and cold, the skin is patterned or the mucous membranes are pale and cyanotic, and the urine output is less than 30 ml per hour or there is no urine at all. V. Systolic blood pressure is less than 80 mmHg. VI. Pulse pressure is less than 20 mmHg. VII. Patients with pre-existing hypertension experience a 30% or more decrease in systolic blood pressure from the original level. Shock can be diagnosed if the first or two of the second, third and fourth articles above, and one of the fifth, sixth and seventh articles are met.