How Long For PCR RESULTS

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Ask the Experts

DNA PCR effective for how long?

Dear Dr Conway- I've read that toward late stage HIV disease, antibody tests become less effective. Is the DNA PCR the most useful test at that point? Also, does the average DNA PCR test look for all subtypes of HIV1, or does it have certain...
Brian Conway, M.D.

Response from Brian Conway, M.D.

University of British Columbia
...The DNA PCR kit is extremely sensitive and will detect infected cells at all stages of infection, including during advanced AIDS. I detects Read more »

CD4 and PCR shipping sampels

On my country there is no CD4 count test so they shipping the samples to other laps some where in... Read more »

PCR negative, HIV positive, what does it mean?

Last week, after been with fever for 2 weeks, I was diagnosticaded with a process of syphilis... Read more »
Articles
AIDS InfoNet

Viral Load Tests

...infection. (See Fact Sheet 102 for more information on HIV antibody testing.) For prognosis , viral load can help predict how long someone will stay healthy. The higher the viral load, the faster HIV disease progresses. For prevention , ... Read more »
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 »
The Well Project

Women and HIV Viral Load

...of HIV, the greater the risk of your immune system being damaged. Viral load can be measured by two different lab tests: a polymerase chain reaction (PCR) test or a branched DNA (bDNA) test. Both tests are accurate, but each has a different way... 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 »