World Blood Donor Day 2019: Things to consider to ensure safe blood transfusion

Once blood transfusion has taken place, the nurses and doctors check for symptoms of an adverse reaction after a few hours.

blood donor day 2019, blood donor day, blood donation, indian express, indian express — Blood is donated by non-paid volunteers who have undergone level of checks before donation. (Photo: Pixabay)

Blood transfusion means infusing blood to a needy patient. Blood has components like red blood cells, white blood cells, platelets or clotting factors, and plasma or whole blood which can be transfused to the patient as whole or according to the need. There are five types of white blood cells which play different protective roles during infection control. Platelets helps in clotting blood during wounds and injuries, while plasma helps in controlling the electrolyte balance in body.