SOTIRIS ZAFEIRIS / SCIENCE PHOTO LIBRARY SOTIRIS ZAFEIRIS / SCIENCE PHOTO LIBRARY
Stored blood plasma. Technician scanning units of fresh, frozen blood plasma. He is using a barcode scanner to read unique barcodes on the packaging to identify each unit on a computer database. Plasma is the straw-coloured liquid component of blood that remains after the suspended cells have been removed. Blood plasma is rich in clotting factors and is used to replace blood lost during childbirth and cardiac surgery, and to treat many types of bleeding disorders.
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