He is indeed in the gray area and needs western blot confirmation. However, he is correct that he may still be indeterminate on the western blot as well. We run western blots on all low positives (1.1 to 3.5) but for those folks, the indeterminate result is more common than in others. I would strongly encourage him to do it anyway. He has a life to live fully, and this may provide an answer for him, either way.
You could test four months after your last contact with him, though I think your risk of infection is very low. You should start with a simple ELISA (herpeselect or captia) and go from there.
But he is the one that needs to pursue the western blot. Quest labs has stopped offering it routinely as of July 1st, but so far, I am still able to order the test for my patients.
Terri
I would say if his western blot is negative, then he is negative, with as much certainty as one can get about this infection. And yes, he can become a phone patient of ours to get the western blot, yes.
Terri
Prior to me, his last partner was one year ago. And if it shows negative, then he could be 100% sure he is negative? Also, he could become a phone patient of you to get the test ordered? Thanks again, I really appreciate your help.
Yes, the test he had is mostly likely an ELISA. You could test with that test as well. You could do it if you feel you need reassurance. Sometimes you can't put a price on reassurance.
When was the last time he had a different sex partner than you? He should wait 16 weeks from that time to having the western blot done.
If the western blot is positive, it is not a false positive.
Terri
Thanks for your response Terri. Is the test he had an ELISA? I would just get that one if so. Would you recommend it to a person in my shoes considering the low odds?
Then as far as the Western Blot goes, if it comes back negative, would that mean with 100% certainty that he is not infected? And if it comes back positive, that could be another false positive? I agree he should have the W.B., maybe with more information, I can convince him.