Western Blot test for HIV
4.6 (5 reviews)The Western Blot test is a confirmatory blood test used to verify HIV infection after a reactive screening test.
Test Details
Also Known As
HIV Western Blot, HIV Confirmatory Test, HIV Antibody Confirmation Test, WB HIV Test, Immunoblot HIV Test
Sample Type
Blood
Gender
Male, Female
Age Group
Adolescents and Adults
Categories
Pathology
Test Code
Serum (1 ml)
The Western Blot Test for HIV is a highly specific confirmatory test used to detect antibodies against individual HIV proteins (HIV-1 and/or HIV-2). It is usually performed after an initial reactive screening test such as ELISA or rapid HIV tests. The test works by separating HIV proteins and identifying specific antibody-protein bands, which confirms true infection and rules out false-positive screening results. Although many modern algorithms now use immunoassay combinations and nucleic acid tests, Western Blot is still recognized as a classical confirmatory method in HIV diagnosis, especially in reference and academic settings.
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