I would like to know if as a reference lab you are using a grade scale as the AABB recommandation such as 1+, 2+, 3+ and 4+ or if you you are using as well 1+½, 2+½ and 3+½ to help finding different andibody­.

If so how what are your descriptions for each of them.

Thanks

We only make distinctions if there is an obvious dosage difference between 1+ and 2+ strength and so on. We use strong or weak when distinguishing the difference 1+ superscript S. This is generally only possible with any degree of consensus with the Gel method.

Thanks