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Negative Out To 18 Weeks NAT

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Ask the Experts

Negative NAT, and then Positive ECLIA

I had a low-risk (or no risk) exposure last July 14, 2012. It was protected sex and unprotected oral with a CSW (I am a straight male). I was told that I never had to test since it was a no risk exposure, but I still did to alleviate my anxiety.On...
David Wohl, M.D.

Response from David Wohl, M.D.

University of North Carolina - Chapel Hill
This is what happens when good people take good HIV tests but get bad results. Your risk of a false positive was relatively high. This is because your exposure risk was so low. Therefore, on balance, the scales tip more in favor of a false... Read more »

NAT Positive, Spot test Negative

Hi, few days back I have donated blood to a blood bank and one of the women working there called me... Read more »

Was I misinformed??? (NAT TESTING 2008)

Hey Dr. Bob, I'll be brief. I recently donated blood and requested to come in and pick up my... Read more »
Articles
U.S. Centers for Disease Control and Prevention

South Africa: Transfusion of Blood Safer From HIV Than Ever

The introduction of nucleic acid amplification testing (NAT) for HIV by the South African National Blood Service has significantly cut the risk of being infected through transfusion, an SANBS official said recently. The remark followed reports of a... Read more »
U.S. Food and Drug Administration

FDA Approves First Nucleic Acid Test (NAT) System to Screen Whole Blood Donors for Infections With Human Immunodeficiency Virus (HIV) and Hepatitis C Virus (HCV)

The Food and Drug Administration has licensed the first nucleic acid test (NAT) system intended for screening donors of whole blood and blood components intended for use in transfusion. This test system can simultaneously detect the presence of HIV... Read more »
Housing Works

Good Fortuño?

Will Fortuño get anything done? Last week, Luis A. Fortuño (R-PR at large) introduced a bill (HR 5292) into the House that would hasten federal intervention in Puerto Rico's ongoing AIDS crisis. Because Fortuño is a non-voting member of the... Read more »
Excel-male.com

Nelson Vergel Asks for Change in Testosterone Guidelines After Another Negative Study

A new study published last week and a previous one from the Veterans Administration Hospital System (see below post) show what happens when older men are given testosterone replacement without managing potential blood level increases of factors... Read more »
Connect With Others

NAT positive, but still have a question

Posted by paper_plane, 1 Reply
I have a question, probably just me being in denial about this whole thing, but i went in for a rapid HIV test because the week before i got strep, went to the doctor and tested positive for it, and i knew that could be a sign of HIV infection. I... Read more »

NAT testing

Posted by Anonymous, 2 Replies
What exactly is NAT testing? I have heard that blood banks use this technology to test the blood supply to make sure it is safe.
I have recieved a 13 week negative so I'm good to donate but still a little gun-shy. I guess I am just wondering how... Read more »

NAT testing

Posted by Anonymous, 2 Replies
Does anyone know anything about Nucleic Acid Testing (NAT) I was told that blood banks use it to seek the virus in donated Blood. How effective is it? I have had numberous negitive Elisa test from home Access over the past six months( with no risky... Read more »

NAT exam

Posted by Anonymous, 2 Replies
I have read in another post that NAT can only grab the virus in the first weaks after, is it true???? Read more »