Blood or the components of blood are used to treat patients with medical conditions such as anaemia, cancer blood disorders, and those having surgery.
Blood is made up of a number of components, including red blood cells, platelets and plasma. Each of these can be used to treat many different conditions.
Blood is usually separated into its individual components or parts, so a patient can be given the particular component they need.
This makes the most of every blood donation, as the components in one unit of blood (or one donation) can be used to treat different patients.
Donated blood or components are given to a patient in a blood transfusion. Blood transfusions are given via an intravenous line into a blood vessel.
How blood is used in hospitals: