- Red blood cells - cells that carry oxygen to and from tissues and organs
- Platelets - cells can be used to control bleeding
- Plasma - liquid part of the blood that helps blood clot
Some people worry about getting sick from giving or receiving blood. It is possible, but is very rare. The Food and Drug Administration and other organizations that collect blood make sure that blood is safe. Every single donation is tested for HIV/AIDS, Hepatitis C, syphilis and several other diseases that can be transmitted through blood. Some people who know they may need blood during surgery donate their own ahead of time. That is the safest type of transfusion.
According to statistics, millions of Russians each year make a blood transfusion. Blood requires the victims of burns and injuries, in complex operations, and heavy labor, and hemophilia and anime - to sustain life.