What Are The Key Points To Note When Sealing The Tube?

1. Commonly used sealing solutions include: 4% citric acid, heparin saline (common concentration is 50%), and pure heparin.
2. Special emphasis: For patients with bleeding tendency, recent active bleeding, and recent surgery, heparin sealing solution should be avoided when sealing the tube (such patients are recommended to use 4% citric acid to seal the tube).
3. Heparin saline sealing solution configuration (taking 50% heparin saline as an example) 50% heparin saline (4ml) = 1 tube of heparin (2ml, 12500U) + 0.9% saline (2ml)
4. How to use citric acid sealing solution: Generally, the finished 4% sodium citrate solution for anticoagulation is used, and it can be directly drawn and used without dilution.