Overview of Topic:
The first recorded human blood transfusion was performed in 1667 by a frenchman named Jean-Baptiste Denis, at the Académie des Sciences. It was successful and blood transfusions have been on-going since then. Blood donation can also called blood banking and it refers to the process of collecting, testing, preparing, and storing blood that is intended to be used for transfusion. Blood donors are usually volunteers who are not paid, however some commercial blood donation and processing enterprises, such as independent blood banks and donor centers, may pay the volunteers. Blood donating is important because blood replacement may be needed by people who have lost blood through accidents, burns, hemorrhage, or surgery. Blood and/or blood components are also used in the treatment of certain types of anemia, various disease conditions, and for medical research. Because people may sometimes donate blood to benefit a specific person, healthy donors may be called upon to donate more than once to help maintain the overall blood supply or when their specific blood type is needed. However, donors are advised to give blood only once every eight weeks to maintain the amount of iron in their blood. The process of donating blood takes about 20 minutes. The donor will either lie down or will sit in a special donor chair that elevates the lower body and legs. The phlebotomist cleans the arm well where they will be inserting the needle and with a tourniquet tightly in place on the donor's arm, a sterile needle is inserted into a vein. As the tourniquet is released, blood flows through the tubing into a plastic blood bag. The donor may be asked to open and close a fist to encourage blood to flow. Usually only one unit of blood is collected and after pressure is applied to the the site the blood flow will be stopped. Donors are then escorted to an observation area, given light refreshments that include liquid, and allowed to rest.
Concept Map:
The first recorded human blood transfusion was performed in 1667 by a frenchman named Jean-Baptiste Denis, at the Académie des Sciences. It was successful and blood transfusions have been on-going since then. Blood donation can also called blood banking and it refers to the process of collecting, testing, preparing, and storing blood that is intended to be used for transfusion. Blood donors are usually volunteers who are not paid, however some commercial blood donation and processing enterprises, such as independent blood banks and donor centers, may pay the volunteers. Blood donating is important because blood replacement may be needed by people who have lost blood through accidents, burns, hemorrhage, or surgery. Blood and/or blood components are also used in the treatment of certain types of anemia, various disease conditions, and for medical research. Because people may sometimes donate blood to benefit a specific person, healthy donors may be called upon to donate more than once to help maintain the overall blood supply or when their specific blood type is needed. However, donors are advised to give blood only once every eight weeks to maintain the amount of iron in their blood. The process of donating blood takes about 20 minutes. The donor will either lie down or will sit in a special donor chair that elevates the lower body and legs. The phlebotomist cleans the arm well where they will be inserting the needle and with a tourniquet tightly in place on the donor's arm, a sterile needle is inserted into a vein. As the tourniquet is released, blood flows through the tubing into a plastic blood bag. The donor may be asked to open and close a fist to encourage blood to flow. Usually only one unit of blood is collected and after pressure is applied to the the site the blood flow will be stopped. Donors are then escorted to an observation area, given light refreshments that include liquid, and allowed to rest.
Concept Map: