[Thrombocyte crossmatching: clinical experience with the Capture P-test].

A commercially available solid phase red cell adherence test (Capture P) for platelet crossmatching was tested. The specificity of the test is 94.8%, the sensitivity 47.9%. Whereas the predictive value for negative results is low (52.9%), the predictive value for positive results was calculated as 93.8%. Therefore, the Capture P test seems to be useful for the exclusion of incompatible single donor platelet concentrates from transfusion. When negative results are obtained, however, no precise prediction of the transfusion success can be made.