While âBRBâ is most widely used in the context of real-time chat, the term has been also discussed on Usenet, including a post on the alt.usage.english newsgroup on January 13th, 1994.
Blood transfusions are done to replace blood lost during surgery or due to a serious injury. A transfusion also may be done if your body can't make blood properly because of an illness. During a blood transfusion, a small needle is used to insert an IV line into one of your blood vessels. Through this line, you receive healthy blood. The procedure usually takes 1 to 4 hours, depending on how much blood you need. Blood transfusions are very common. Each year, almost 5 million Americans need a blood transfusion.
Donate whole blood every 56 days. Red blood cells are the oxygen carrying cells. They can take two weeks or longer to fully return to normal. Donate platelets (apheresis donation) as much as twice in a 7 day period - or up to 24 times in a rolling 12 months. Platelet and plasma components are replaced in the body more quickly than red cells.