

Includes compatibility testing (AHG, electronic, immediate-spin), antigen typing, antibody screening and identification, direct antiglobulin testing, elution, transfusion reaction and drug reaction workups, component typing tests upon receipt in hospital blood bank, release and return of components






































This is an updated version of a previous post.















This is a revised version of a previous post.








This is an updated version of a previous post.









When I review nonspecific reactions on an antibody panel, I always check the outdate of the reagents and the age of the specimen. Outdating reagents may show weak reactivity. Old specimens may get contaminated and bacteria may alter the RBC surfaces (e.g. T-activation).
Here is an example of weakened reactions with an outdating antibody panel. This panel was used one-week before its expiration:

Here is the same patient with the new panel with 5 weeks before its expiration:
