Therapeutic or Preventive Procedure
apheresis Audio
a·pher·e·sis [ uh-fer-uh-sis ]
Subclass of:
Therapeutic procedure
Definitions related to apheresis (procedure):
  • (pheresis) A procedure that collects a component of the peripheral blood while returning the rest to the donor.
    NCI
    U.S. National Cancer Institute, 2021
  • (pheresis) Collection of Red Blood Cells, Platelets, Leukocytes, Granulocytes, or Plasma usually by automated equipment. Can also refer to peripheral blood stem cells recovered after mobilization by cytokines.
    U.S. FDA Glossary
    U.S. Food & Drug Administration, 2021
  • (apheresis) A procedure in which blood is collected, part of the blood such as platelets or white blood cells is taken out, and the rest of the blood is returned to the donor.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • (blood component removal) Any procedure in which blood is withdrawn from a donor, a portion is separated and retained, at the same time the remainder is returned to the donor.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • In apheresis, blood is removed from a person and then returned after substances are removed from it.
    Merck Manuals
    Merck & Co., Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.