Crossmatch

(redirected from crossmatches)

crossmatch

Serologic crossmatch Transfusion medicine An agglutination test that determines donor-recipient blood compatibility. See Electronic crossmatch, Immediate spin crossmatch, Major crossmatch, Minor crossmatch.
Crossmatch
Major crossmatch Patient serum–which may contain antibodies is cross-reacted against the donor's red cells and
Minor crossmatch Patient RBCs are incubated with donor serum, this is of less clinical significance; it reveals donor antibodies against uncommon antigens–eg Cw, -Wra, -Lia 

Crossmatch

A laboratory test done to confirm that blood from a donor and blood from the recipient are compatible.
References in periodicals archive ?
This was a retrospective study that collated data from all crossmatches performed in our laboratory in 2013, as part of pre-transplant screening for living donor renal transplants.
A high C/T ratio implies that unnecessary crossmatches were performed when a type and screen or no order at all would have been more appropriate.
6) They showed that, similar to the use of routine red blood cell (RBC) crossmatches to detect recipient antibodies that could cause posttransfusion hemolysis, a positive pretransplant crossmatch, using recipient serum and donor lymphocytes, frequently predicted hyperacute renal allograft rejection.
Prior to transplantation, recipients are therefore routinely screened for preformed antiHLA antibodies and prospective crossmatches are performed by conventional complement-dependent cytotoxicity crossmatch (CDC-XM) techniques, but also by flow-cytometrybased methods [1, 2].
However, both can be subject to interference, (8,11) and even if both crossmatches are negative, early graft rejections still occur.
Crossmatches are then performed using flow cytometry and complement-dependent cytotoxicity assays (Betkowski et al.
5 tests per patient for crossmatching, and crossmatches 80% of his patients, while his/her colleagues use from 2.
The posttransplantation crossmatches of all 0% PRA recipients were negative, the researchers said.
As will be seen below, such earnings crossmatches are extremely powerful in their applications and also almost costless to implement.
Unnecessary crossmatches hold units for a single patient, keeping that product from patients who need transfusion.
In addition to netting quick results from computerizing routine tasks, such as infectious-disease testing on donor units, patient and unit typing, and antibody screens, instrumentation can even perform crossmatches.