Abdominal drainage tube Role: placed in the low abdominal cavity, anastomosis, or sites prone to bleeding and exudation to facilitate drainage of fluid accumulated in the abdominal cavity, prevent leakage from the duodenal stump or intestinal anastomosis after surgery, and pancreatic surgery to prevent pancreatic fistula. Type: There are two types of single and double cannulae. The purpose of using double cannulae for drainage is to prevent the wall of the drainage tube from collapsing due to the effect of negative pressure, which hinders the smooth flow of drainage. Nursing operation: When the patient is transferred to the ward, the number of drains or drainage tubes placed must be counted, preferably marked according to the role or name and check whether the drainage bag is connected smoothly and the seal is intact; to be properly fixed to prevent distortion, pressure, folding; patient turning, getting out of bed, defecation should prevent the drainage tube from being dislodged or broken and slipped into the abdominal cavity, the dislodged should be promptly notified to the doctor; observation and recording of the drainage material The normal color is light red, later is yellow, clear liquid, 0 —-100ML per day, if the hourly amount is more than 50ML, lasting for 3 hours and red, or bile color, or cloudy color are abnormal; observe and record the amount of drainage material, the outer dressing is wet and timely change and estimate the amount of liquid, should squeeze the tube once every 30 minutes to prevent the tube from being blocked and no drainage tube. If the drainage tube is a double-cannula drainage tube, pay attention to keep the venting tube unobstructed and do not fold it; if negative pressure drainage is needed, adjust the required negative pressure and pay attention to maintain the negative pressure state; if the intra-abdominal drainage tube cannot be removed in 2-3 days, the skin tube should be rotated once every 2-3 days to avoid secondary injury caused by long-term fixed compression; if the drainage tube is needed to inject antibiotics and other drugs or to flush the lumen, it should be Observe the possible complications caused by drainage such as necrosis and bleeding of compressed tissues, intestinal fistula, secondary infection, pain, etc. The tube should be removed or replaced in time to deal with the complications.