The latest fasting and drinking standards in 2020

The latest fasting drinking standards in 2020 are: patients under general anesthesia can eat 2 hours after examination, and patients under spinal anesthesia can eat 3-6 hours after operation. After operation, patients can drink 500-1 000 ml on the first day, 1000- 1500 ml on the second day and 1500-2000ml on the third day, increasing in turn. It should be noted that postoperative nausea, vomiting or operation duration >; It is not suitable to eat for 6-8 hours. After the expiration of fasting, all fasting patients should follow the principle of gradual progress, small increments and small meals. In the early stage, warm and cool liquid was the main food, and the first food intake was controlled at 100 ~ 200ml, four times a day. Lotus root starch or rice soup can be given, and protein and fat diet are strictly prohibited. After 2~3 days, it can be changed to a semi-liquid diet, which is non-irritating and less slag.