Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Anonymous asked in HealthDiseases & ConditionsInfectious Diseases · 1 decade ago

what does baeline hiv test means?

whats the longest window period. when taken test how far does it look


i tested neg 20 months

2 Answers

  • 1 decade ago
    Favorite Answer


    Initially it is a good idea to have two viral load tests performed at separate visits. This will give a reliable measure of the baseline HIV level. If your viral load is low and CD4 count is normal, your doctor may not recommend antiretroviral therapy. If your viral load is high, your doctor will recommend that you start antiretroviral therapy.

    Evaluating therapy

    To determine if antiretroviral therapy is effective, you should have a viral load test performed along with a CD4 count about four weeks after starting it. In general, effective therapy should result in a significant drop in your viral load titer over this time period. This is defined as at least a factor of three-fold (for example from 10,000 to less than 3,000). Your doctor will review the results with you and discuss the significance of the change in viral load titer.

    What is viral load testing?

    Viral load testing measures the number of HIV particles in your blood. These tests detect a kind of protein strand called RNA, which is a part of HIV containing the genes of the virus. Each HIV particle contains two copies of a molecule called RNA that carries the HIV genes. The viral load test determines the number of copies of HIV RNA molecules in a sample of blood.

    There are three laboratory techniques that have been developed for viral load testing: quantitative polymerase chain reaction (PCR), branched-chain DNA (bDNA), and nucleic acid sequence-based amplification (NASBA). While the viral load test actually measures only the level of virus circulating in your blood, there is evidence that this value is a good indicator of the amount of virus in your entire body.

    Good luck!


  • 1 decade ago

    six months is the window period more far.

    If it's negative then there is not VIH

Still have questions? Get your answers by asking now.