Donated blood is only good for 3 weeks

The use of blood donated by charitable individuals after 3 weeks of storage can be considered as a disadvantage for patients like eating high-fat foods or smoking. This is the conclusion of American doctors at Johns Hopkins University in Baltimore, according to The Daily Mail.

Photo: Wired

During the study, medical scientists found that after a period of blood storage, there was a significant loss of NOx content. This is a chemical compound that extends blood vessels and is partly responsible for providing oxygen to tissues.

If this concentration is low, it can be harmful to the cardiovascular system. As a result, blood cells gradually lose the ability to penetrate the capillary network.

Experiments comparing fresh blood transfusions and blood storage after 3 weeks proved that.

Based on the aforementioned warnings, two large-scale studies are being conducted to verify and if so, the maximum permissible storage time of blood must be modified. Currently, in hospitals and blood banks, the standard for blood and plasma storage time is 6 weeks

A few years ago British cardiologists once pointed out that patients with heart surgery if transfused with old blood, are more likely to have complications such as sepsis or kidney failure, and the results is the mortality rate after surgery increases.