cross-matching


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Related to cross-matching: Type and cross

cross-match·ing

(kros'match'ing),
1. A test for incompatibility between donor and recipient blood, carried out before a transfusion to avoid potentially lethal hemolytic reactions between the donor's red blood cells and antibodies in the recipient's plasma, or the reverse; performed by mixing a sample of red blood cells of the donor with plasma of the recipient (major crossmatch) and the red blood cells of the recipient with the plasma of the donor (minor crossmatch). Incompatibility is indicated by clumping of red blood cells and contraindicates use of the donor's blood.
2. In allotransplantation of solid organs (for example, kidney), a test for identification of antibody in the serum of potential allograft recipients that reacts directly with the lymphocytes or other cells of a potential allograft donor; presence of these antibodies usually, if not always, contraindicates the performance of the transplantation because virtually all such grafts are subject to a hyperacute type of rejection.

cross-match·ing

(kraws'mach-ing)
1. A test for incompatibility between donor and recipient blood, carried out before transfusion to avoid hemolytic reactions between the donor's red blood cells and antibodies in the recipient's plasma, or the reverse; performed by mixing a sample of red blood cells of the donor with plasma of the recipient (major cross-match) and the red blood cells of the recipient with the plasma of the donor (minor cross-match). Incompatibility is indicated by clumping of red blood cells and contraindicates use of the donor's blood.
2. In allotransplantation of solid organs (e.g., kidney), a test for identification of antibody in the serum of potential allograft recipients that reacts directly with the lymphocytes or other cells of a potential allograft donor; presence of these antibodies usually, if not always, contraindicates the performance of the transplantation because virtually all such grafts will be subject to a hyperacute type of rejection.

cross-matching

A test of the compatibility of blood intended to be transfused. Serum from the donor's blood is mixed with red cells from the recipient's blood. If the bloods are incompatible, the red cells will clump together (agglutination). See also BLOOD TRANSFUSION.

cross-matching

test of compatibility between donor and recipient of blood (to prevent lethal haemolysis), or test of tissue compatibility prior to allograft (organ donation) to prevent later graft-versus-host rejection

matching

comparison for the purpose of selecting objects having similar or identical characteristics.

blood matching
see cross-matching (below).
control matching
see matched study.
cross-matching
determination of the compatibility of the blood or tissue of a donor and that of a recipient before transfusion by placing erythrocytes or leukocytes of the donor in the recipient's serum and erythrocytes or leukocytes of the recipient in the donor's serum. Absence of agglutination, hemolysis and cytotoxicity indicates that the two blood or tissue samples belong to the same group and are compatible.
References in periodicals archive ?
Five-year and 10-year relative breast cancer survival rates, before and after crossmatching with the National Death Index (NDI), Girona and Zaragoza, 1995-1999 Breast cancer survival rates Before NDI cross-matching Registry % 95%CI (a) 5-year relative survival rates Girona 81.
Having initially failed to mention that they were cross-matching, Betfair then admitted to now potentially being in a position to trouser any spare money arising.
Paul Madera, Managing Director at Meritech Capital Partners commented, "Trading Edge has the right model, a cross-matching Internet-based service; the largest installed base of institutions; and is recognized as a leader with experienced management.
Trading Edge's internet-based, anonymous, cross-matching model is the best solution for online bond trading, and the Company has among the strongest and most-experienced management teams in the industry.
Lanterman said that the TP-600 generated fingerprints will be electronically transmitted to Illinois State Police headquarters in Joliet, as well as to the FBI, for cross-matching to determine an individual's prior record if any.