Does ISBT 128 require that a red blood cell product be antigen typed on every donation or can I label the product as antigen negative based on historical antigen testing of the donor?
The ISBT 128 standard does not create standards for testing—only for how the product can be labeled or how information should be transmitted electronically. We defer to AABB in the US (and EU Council in Europe) for a standard on how and when the testing should be done. We do not address whether or not you can label a unit as antigen negative based on historical results.
