Emergency care requires the following points: 1. Close monitoring of vital signs, timely monitoring of blood pressure, heart rate, pulse, central artery oxygen saturation, urine volume, body temperature and other basic vital indices, and keep records at all times. 2. Emergency care requires strict aseptic operation of the patient, and must do three checks and seven pairs. 3. 4.The patient’s trust and the patient’s cooperation should be fully obtained for aseptic operations such as puncture. 5.Common emergency routines, such as deep venipuncture care need to be done with complete asepsis and appropriate indications selected for treatment.