What is accuracy of hiv combaids rs advance hiv test? What is the window period of this test?

Question

98-99% is the accuracy and window period is 6 weeks.

Kausalya Chandran · Accepted Answer

98-99% is the accuracy and window period is 6 weeks.

Jagtap T N · Answer

Hiv combo test: It is now common for antibody tests to also test for antigens. These are called 4th generation tests or combined antibody/antigen (Ag/Ab) tests. In these tests the antigen being tested is a major HIV protein called p24. P24 (short for protein 24) is produced 2–3 weeks after infection and before antibodies are produced. A reactive result from a fourth generation HIV Ab/Ag combination assay means that HIV-1 p24 antigens, HIV-1 antibodies, and/or HIV-2 antibodies were detected in the sample processed. A secondary test is required to confirm the reactive result. P24 antigen is a viral protein that makes up most of the viral core. Serum concentrations of p24 antigen are high in the first few weeks after infection; tests sensitive to p24 antigen are therefore useful for diagnosing very early infection when antibody levels are still low. How long can p24 antigen be detected? The p24 antigen test can detect the p24 protein on average 10 to 14 days after infection with HIV. One drawback of this test is that levels of the p24 protein peak at around three to four weeks after exposure to HIV and are usually not detectable after five to six weeks (and sometimes even earlier). What is window period for p24 antigen test? The first HIV protein (antigen) that can be measured is p24 (from 1 to 8 weeks after exposure). Viral load and p24 tests are not accurate for diagnosing early HIV if the results are negative. An HIV antibody response can be detected as early as two weeks in a few people and in more than 99.9% of people by 12 weeks. The OraQuick ADVANCE® Rapid HIV-1/2 Antibody Test detects antibodies to HIV-1 and HIV-2 in 20 minutes. Rapid Provides results in 20 minutes, enabling patients to learn their status in a single visit and allows HIV positive patients to be connected to care immediately. Flexible Approved for oral fluid, plasma, fingerstick or venipuncture whole blood specimens. Ideal for both clinical and non-clinical settings. Accurate Greater than 99% agreement with confirmatory Western blot. 1 Simple CLIA-waived for oral fluid, fingerstick and venipuncture whole blood and offers the ability to test in non-traditional testing environments, such as outreach programs and mobile testing clinics. Patient-Preferred2 Offers patients accurate HIV testing without the need for blood or needles. Pain-free testing with oral fluid means more people get screened, more HIV positive patients are connected to care and fewer people are exposed. What does it mean to be CLIA waived? All facilities in the United States that perform laboratory testing on human specimens for health assessment or the diagnosis, prevention, or treatment of disease are regulated under the Clinical Laboratory Improvement Amendments of 1988 (CLIA. Mar 16, 2015.