How long can blood in a blood bank be stored

There is a lot of blood in the human body, but each person's blood type is different. Some volunteers will go to the hospital to donate blood to facilitate blood transfusions for patients who are bleeding heavily during surgery. Food has a shelf life, and blood also has a shelf life. If this batch of blood is not used up during this period, then this batch of blood will be scrapped. Hospitals generally store blood in blood banks, so how long can the blood in the blood bank be stored?

How long is the storage period of blood in a blood bank? The requirements for blood storage are: preventing coagulation, ensuring the nutrients needed for cell metabolism, extending the lifespan outside the body, and ensuring that it can exert the corresponding functions after being transfused to the patient. Therefore, anticoagulants, nutrients required for cell metabolism, and temperature control within a certain range must be added during storage. Due to the different characteristics of various blood cells, the storage methods and storage periods are also different. Currently, whole blood and red blood cells can be stored at 4±2℃ for 35 days;

The plate can be stored in a special bag at 22±2℃ with constant shaking for 5 days; fresh frozen plasma can be stored below -20℃ for 1 year. Therefore, blood collection must be carried out in a planned manner. If too much blood is collected, it will not be used up within the storage period, which will cause waste; if too little blood is collected, it will not meet the needs of clinical emergency and treatment.

Blood must be stored in a regular blood bank. Has a shelf life. Once out of standard storage conditions, it must be used immediately.

After whole blood is collected, it is generally necessary to separate its components by centrifugation. Red blood cell suspension is the blood that is usually transfused (with the white blood cells removed to reduce side effects). The separated red blood cells and white blood cells are usually stored between 1 and -6 degrees Celsius. It will not freeze due to the preservation solution. White blood cells can be stored for up to 35 days, and red blood cells for up to 42 days.

Red blood cells can be stored for 10 years in a glycerol-containing storage solution at minus 65 degrees Celsius. This can be used to preserve rare blood types.

Cell-free plasma, stored at -30 degrees Celsius. Fresh frozen plasma is rich in clotting factors.

Platelets can be stored at room temperature (20-24°C) for 5 days. Also need to keep shaking.