Results: The overall sensitivity of the test for diagnosing HIV infection based on detection of p24 antigen and/or antibodies was 92% (95% CI 86% to 98%) (82/89). In acute sera with only p24 Managing Pregnancy Complications Improving Sexual Health - Male Living with AIDS Treating Hives Living Healthy - Man Living Healthy - Woman Treating Sexually Transmitted Diseases (STD) After complete my pep treatment I test for hiv 1&2 ab & p24 ag (combo) the index value is 0.20 what it mean please any doc clarification plz. Dec 15, 2020 · Dr.M.D.Mazumdar. MBBS. MD (Obstetrics and Gynecology. Did a Hiv combo test yesterday and the result was negative. did a Hiv combo test yesterday and the result was negative how ever the value on the result read 0.70 and this has got me worried..This test was done 5 months 4 days after exposure. My previous test i. The Australian regulator requires rapid HIV tests to have a clinical sensitivity of 99.5% for whole blood, serum or plasma and 99% for oral fluid tests (based on testing performed outside of the seroconversion window period for the device) and a clinical specificity of at least 99% for detection of HIV infection. [4] Nov 1, 2022 · HIV-1 Ag panels containing 10,000,000, 2,500,000, 500,000, and 100,000 cp/ml HIV-1 were made and used to evaluate the three IVDs currently available in Japan. The COI of the panel samples with 100,000 cp/ml of HIV-1 RNA was near the cut-off value by Enzygnost HIV Integral IV and Genscreen HIV Ag-Ab ULT. Specimens are initially tested using the GS Combo Ag/Ab Enzyme Immunoassay (EIA) (Bio-Rad Laboratories, Redmond, WA) test method. This test detects simultaneously HIV-1 p24 antigen and antibodies to HIV-1, both groups M and O, and HIV-2. Any specimen that is initially reactive in the screening test is retested in duplicate with the same test. Dec 29, 2022 · Never disregard professional medical advice or delay in seeking it because of something you have read on this website. 25 yrs old Male asked about Index value of test, 3 doctors answered this and 173 people found it useful. Get your query answered 24*7 only on | Practo Consult. Sep 21, 2019 · Mehdi Hage-Sleiman, Pauline Tremeaux, Marine Fillion, Faroudy Boufassa, Adeline Melard, Elise Gardiennet, Alice-Andrée Mariaggi, Jean-Christophe Plantier, Christine Rouzioux, Olivier Lambotte, Véronique Avettand-Fenoel, for the CODEX ANRS Cohort Study Group , False-negative Results of Human Immunodeficiency Virus (HIV) Rapid Testing in HIV Controllers, Clinical Infectious Diseases, Volume 70 Dr. Sajeev Kumar. The "index value" (also called the "signal-to-cutoff ratio") is a technical term having to do with how this type of hiv-antibody test is conducted. Values less than 0.90, like yours, are definitively negative! values between 0.9 and 1.0 would be equivocal or borderline. And values above 1.0 would be preliminarily positive. Oct 8, 2012 · The HIV-1 RT-LAMP assay detected seroconverting individuals one to three weeks earlier than a rapid HIV antibody test and up to two weeks earlier than a lab-based antigen/antibody (Ag/Ab) combo exTF5.