If an HIV test was done using a chemiluminescent microparticle immunoassay (CMIA): does it mean that it screened for HIV 2 and/or is a 4th generation test?
On http://www.uphs.upenn.edu/bugdrug/antibiotic_manual/HIVtesting-newmethods.htm, it seems to hint that CMIA is only used for 4th generation tests but I am not entirely sure.
HIV blood antibody testing is used to diagnose HIV infection by using a two to three-tiered testing protocol. First, a 4th generation screening test for HIV-1and 2 antibodies, and p24 antigen is performed, using a chemiluminescent microparticle immunoassay (CMIA) (Abbott HIV Ag/Ab Combo Assay performed on the Abbott Architect instrument), or a 3rd generation immunochromatographic card (Trinity Biotech Unigold) assay is used. If positive, then a second test is done, using a rapid immunoconcentrating assay (Biorad Multispot).