Both false negatives and false positives happen with this test – it’s not good at all. Were both IgG tests, no IgM tests? I see an index value for the first one and that it is an IgG but I don’t see that for Kaiser. I’m sorry I cannot guide you more accurately here. Both false positive and false negative are options, though I see more false positives than false negatives when we run the blot and compare it to the IgG. For the record, I’ve never had Kaiser agree to order a western blot.
Terri