I read on some websites that antigens peak quickly and then drop off and sometimes before the antibodies are formed or at least at decteable levels does anybody know abou this
I did email CATIE, and they just stated what I read on their website was correct. I’m not sure how I would go about contacting the lab. The lab isn’t public it’s inside the hospital and I’m not sure if they would answer questions like that.
I read a lot on the 4th generation test and some websites say it only has a 3 week window, some day it’s accurate at 4 weeks and some say 6 weeks. On CATIE website it says 95% of infections would be picked up at 34 days and 99% at 6 weeks. I seen on medhelp that some people say 95% of infections at 4 weeks and some sites say anytime after 3 weeks. So my 31 day result might only be 95% accaurate. Maybe I am infected and it was missed
CATIE is an excellent website and you can trust it's information. It's hard to imagine any lab in the US or Canada using anything less than a 4th gen tests. If you are anxious about the test you had, why don't you call the lab and ask them? Put an end to your guessing and assuming right now!
I am not sure what kind of test it was, I only got told the results. I researched and found on the CATIE website (I am in Canada) that it says all labs use the fourth generation test for blood drawn tests. And another sections talks about the no longer used “third generation”. Like I said I can not be positive of which test it was, but CATIE says ALL labs in Canada use 4th Gen. so I guess I can only assume it was. But this is not something I would like to guess and assume on
Your test result won't change if it was a 4th generation (Ab/Ag) test. Otherwise, a test at 12 weeks post-event is conclusive, and no one can guess whether your result will or will not change.
You definitely had a risk for HIV and if the test you took at 31 days was a 4th generation DUO, the negative results were conclusive. If it wasn't a 4th generation, you would be wise to test again at 12 weeks.