How often can you donate blood?
As a rule, patients are not transfused with the blood itself, but with some of its specific components that it needs. Therefore, not all of the blood can be taken from the donor, but only its components.
Types of blood donation
1. Donating whole blood. At a time from the donor is taken from 400 to 500 ml. The procedure for collecting whole blood lasts only 5 to 10 minutes. After donating blood, at least 60 days must pass in order for the donor to be able to donate blood again. Women are recommended to donate blood no more than 4 times a year, men - no more than 5.
When a donor donates blood components, as a rule, they first take whole blood, filter it in a special way (i.e., separate the necessary component), and what is left is poured back to the donor.
2. Plasma surrender (plasma exchange). For 1 time take about 400 ml. blood. There must be at least 30 days between blood donation and plasma donation. After donating plasma, whole blood can be donated after 14 days, and after 14 days it is possible to donate plasma again. A donor can donate up to 12 liters of plasma per year.
3Platelet surrender (thrombocytapheresis). This procedure is more complicated and requires special preparation of the donor. Platelet taking is carried out on special devices and can last more than an hour. The periods between platelets are exactly the same as in the case of plasma.
4. Granulocyte surrender. Granulocytes are derivatives of leukocytes. But it is worth noting that this type of blood sampling is very rare and is performed in exceptional cases. After 4 regular bleeding, doctors recommend a break of 3 months.
Now you know how often you can donate blood. Please observe these deadlines, and then you will be able to help people and not harm yourself.