Water and salt electrolyte disorder：Perioperative identification and treatment        SHEN Zhen-ya，ZHOU Fa-chun，YANG Jie. Intensive Care Unit，the First Affiliated Hospital of Chongqing Medical University，Chongqing 400042，China
Corresponding author：ZHOU Fa-chun，E-mail：zfc88@126.com
Abstract    Water and salt electrolyte disorder often happens among perioperative patients，which can lead to abnormality of physiological functions，such as hypovolemic shock caused by dehydration，arrhythmia caused by low potassium, etc. If this disturbance cannot be rectified in time，it may affect surgery directly causing surgery delay，poor prognosis after surgery and even threat to life. During perioperative period， fluid and electrolyte imbalance is easy to happen due to abrosia，loss of fluids and improper electrolyte supplement in dehydration time. Critical patients’ condition is usually complicated，so it is hard to decide the conditions of water-electrolyte disturbance simply by clinic features. It often depends on searching the ill causes and biochemistry and so on to check and decide the conditions of water-electrolyte disturbance. Moreover，serious basic diseases make the process of water-electrolyte disturbance rectification harder. Replenish water electrolyte physiological requirements and additional loss，and dynamic monitoring of the electrolyte level，are effective methods to avoid the serious water electrolyte disorder. It should attach importance to water electrolyte disorder happened to perioperative patients，do early diagnosis，timely correcting.