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What Is The Window Period For Hiv Pcr Test

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Get the Facts
San Francisco AIDS Foundation

HIV Testing

...do not know they are infected, these individuals are unable to benefit from clinical care related to their HIV disease. In addition, some of these people may unknowingly be transmitting HIV to other people. The San Francisco AIDS Foundation strongly encourages people who are at risk for HIV to be tested regularly. Whether or not to take the HIV antibody test, however, is a personal decision that only you can make for yourself. That being...
Ask the Experts

Does Truvada influence the window period of HIV infection?

Hello, On 6/15, I had a high risk exposure with a HIV positive female. I also take Truvada daily for my heptatis B infection daily, and I was wondering if by taking truvada, does it change the 3 months window period?I recently tested negative on 9/1...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
...should not significantly alter the window period. If you and/or your doctor have ongoing concerns, you could consider getting a PCR test, which does not relay on antibody formation. However, PCR RNA and/or PCR DNA are not routinely recommended... Read more »

About window period, PCR, western blot and conclusiveness

Hi. Mr Bob.I am the one that made the question with title "tests says I am "-" . Could I have undetectable viral load?". I have to say I am sorry for asking something that stupid, I didn't know what was the process of standard HIV testings. Anyway,...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
...six months. If still negative, then you have indeed dodged the HIV bullet and are conclusively HIV negative. I don't recommend PCR tests due to the rate of false-positives, technical considerations with some of the assays and cost.Dr. Bob Read more »

Diabetes---pls respond, not in archives

Dear Dr Bob:I have been diagnosed with diabetes durng my "window period". I am now extremely stressed since I learn this is an autoimmmune problem. Please tell me, will this effect my elisa test, since it is an autoimmune condition? Should I take a...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
...diabetes will not affect your ability to produce HIV antibodies, the duration of your window period or your HIV test results. PCR testing is not necessary.And now it's in the archives yet again.Good luck.Dr. Bob Read more »

PCR Question

Mr. Kull:The CDC states that this test can pick up the HIV virus in someone only recently infected. My question is how accurate is the test say at 16 weeks, and what does the test look for, that the antibody test does not?
Ryan M. Kull, C.S.W

Response from Ryan M. Kull, C.S.W

Columbia University's Health & Related Services
...RNA or DNA detected) at 16 weeks most likely means that you are not infected, but an antibody test result is preferable.PCR (polymerase chain reaction) tests are used to detect the presence of HIV-RNA or DNA in a person's blood. Essentially, the... Read more »
Articles
San Francisco AIDS Foundation

Viral Load Testing

...the branched-chain DNA test ( bDNA ), is made by a company called Chiron (pronounced "KAI-ron"). The reverse transcriptase polymerase chain reaction or RT-PCR (commonly called the PCR ) test is made by Roche (pronounced "RO-sh").... Read more »
New York State Department of Health AIDS Institute

Diagnostic, Monitoring and Resistance Laboratory Tests for HIV

...Assays 2. HIV-1 Confirmatory Antibody Assays 3. HIV-2 Antibody Screening B. Viral Identification Assays 1. DNA Polymerase Chain Reaction (DNA-PCR) 2. Plasma HIV RNA Assays III. Monitoring Tests A. Lymphocyte Analysis ... Read more »
The Body's "Ask the Experts" Forums

FAQs About HIV Testing From TheBody.com's "Ask the Experts" Forums

...affect HIV test results? What is an eHIV test? Can smoking marijuana cause a false-positive HIV test result? What is PCR RNA testing? I was told that an RNA test detects the virus with 100 percent accuracy only 10 days after exposure.... Read more »
Seattle Treatment Education Project

Battle of the Sexes: Gender-Based Differences in HIV Viral Load

...Measurement of Viral Load Viral load is usually measured via a routine blood draw, using a test called reverse transcriptase polymerase chain reaction (RT-PCR). This is a biochemical reaction that amplifies the genetic material (or RNA) of the... Read more »
Connect With Others

Can PCR Amplify Antibodies?

Posted by ethan_hines, 1 Reply
...Can PCR be used to amplify HIV Antibodies. I ask this question because I know that during the "window" period (0~6months) a person tests Read more »

Hiv window period for testing

Posted by nomoreworry4me, 2 Replies
...19 months negative I have did few hiv rna etst at 4 weeks and 8 weeks and 12 weeks and 6 months and 9 months was hiv dna by pcr was not detected . 10 months was hiv rna and elisa both neg 12 months was another one. around 15 months was western... Read more »

What type of PCR tests are done in the USA?

Posted by Anonymous, 1 Reply
...Molecular detection of human immunodeficiency virus-1 infection among commercial sex workers using the polymerase chain reaction in Singapore. Ann Acad Med Singapore. 1996 Nov;25(6):831-6. Unique Identifier : AIDSLINE MED/97207755 Goh CL; Chan... Read more »

Window period for DNA PCR

Posted by Anonymous, 3 Replies
...In a week's time I am leaving for a place that doesnot have any discrete HIV testing facilities. I am tempted to go for a DNA PCR test. It would help a lot if you can tell me what is the actual window period for a DNA PCR test. I have been told... Read more »