cross-matching

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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 ?
Basically, if you want to get your predictability for a good cross-match, very high, you need to try to list every possible antibody that can be detected by the most sensitive techniques.
Since 50-year-old Graham was diagnosed with lymphoma, more than 1,000 Nuneaton people have given a blood sample, hoping to become a cross-match for Graham and others like him.
SAIC's IIS system utilizes a variety of specialty devices performing imaging acquisition, OCR data collection, and cross-match validation of trucks entering and leaving intermodal container facilities.
Mr Birch, aged 50, of Attleborough Road, Nuneaton,is a rare tissue type - but Nuneaton Borough Supporters Club set up a mobile unit in the town's Market Place in the hope of finding a suitable cross-match for him.
Dad-of-two Graham Birch, suffering from a rare form of blood cancer and badly in need of a bone marrow transplant, watched hopefully on the sidelines as people queued in the hope of becoming a suitable cross-match.
Blood collectors can maintain a frozen inventory of blood for patients who are difficult to cross-match to meet their blood needs," Dr.