# The Blood Safety and Quality Regulations 2005, Paragraph 13


“Red cells, buffy coat removed, in additive solution” means the red cells from a single whole blood donation, with a large proportion of the plasma from the donation removed. The buffy coat, containing a large proportion of the platelets and leucocytes in the donated unit, is removed. A nutrient or preservative solution is added.

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Source: https://www.legislation.gov.uk/uksi/2005/50/schedule/part/1/paragraph/13 (the official version)
Page: https://openlegislation.uk/blood-safety-and-quality-regulations-2005/schedule/part-1/paragraph-13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.