Obtaining a blood sample from some people may be more difficult than from others. The blood will be stored under tightly controlled refrigeration. This unit of blood has been typed, screened for disease, cross matched for blood type, and is now ready for infusion into the patient. A blood centrifuge is used to separate donated blood into its components. A needle has been inserted into a large vein in the forearm.
Blood flows from the vessel through the tubing to the collection bag.
Donated blood has been responsible for saving millions of lives. Stored platelets after blood donation. Platelets are a very important component of blood. These tiny particles plug small holes in capillaries and vessels caused by the damage of everyday living. Platelets can be separated from blood and given to individuals who have low platelet counts and are at risk for serious bleeding.