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Rapid tests are usually reliable for long-standing infections, but are sometimes unable to detect recent HIV infections acquired in the past few weeks. Many tests are based on older ‘second-generation’ technology, but a ‘fourth-generation’ test with better performance is available.
Studies show that most people can accurately and reliably use self-testing devices. HIV self-testing involves collecting your own specimen (oral fluid or blood) and using a rapid HIV test kit. You perform the whole test yourself, including reading and interpreting the test result. This is different from HIV self-sampling.
19 maj 2022 · Combination HIV antigen/antibody tests are far more accurate than traditional antibody-based assays, particularly during the acute stage of infection. Lab-based tests still outperform at-site, point-of-care HIV tests, most especially in cases of recent HIV exposure.
We did a systematic review to assess the reliability and performance of HIV rapid diagnostic tests when used by self-testers, compared with health-care workers.
Interpretation: Self-testers can reliably and accurately do HIV rapid diagnostic tests, as compared with trained health-care workers. Errors in performance might be reduced through the improvement of rapid diagnostic tests for self-testing, particularly to make sample collection easier and to simplify instructions for use.
20 gru 2021 · Rapid point-of-care tests can deliver preliminary results in around 20 minutes. These may require a blood drop from your finger, an oral swab from your gums, or a sample of urine. Of these, the preferred method is the blood-based combination HIV antigen/antibody (Ag/Ab) test.
Rapid diagnostic tests (RDTs) are so called as they produce a test result quickly, usually in less than 30 minutes. The broad class of HIV-1/2 RDTs includes lateral-flow (immunochromatographic) and vertical-flow (immunofiltration) assay formats, which detect the presence of HIV-1/2 antibodies and/or HIV p24 antigen.
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