It is not the same thing. Be HIV-positive is that the virus has entered into our body, but not necessarily started to attack him. If does nothing with the time the individual Seropositivo inexorably develop AIDS. (6) Which are the analyses of CD4 and CD8? They are a few analysis to assess the immune status of our organism. It’s 2 strains of lymphocytes T. AIDS causes decrease lymphocytes CD4 (cells of the colaborador-inductor subgroup) and increase the CD8 (repressor subgroup).
These analyses are performed by flow cytometry. The normal CD4/CD8 ratio is 2.0, but patients with AIDS have a ratio less than 1,0, inverted. (7) What is important if the CD4 lymphocytes are lower than 500 / mm3? Because this is the level below which are presented pneumonias Pneumocystis carinii pneumonia and the possibility of Kaposi’s Sarcoma. Below this figure must be given anti-retroviral treatment. (8) Which is the analysis of the p24? It is an Antigen from the virus that is very specific, but with a low sensitivity. Used in cases early detection of HIV infection prior to seroconversion. Also in the diagnosis of HIV in infants of HIV-positive mothers and some other more complex cases.
(9) How can you differentiate between HIV 1 and HIV 2? The only way to do so is through a quantitative analysis of RNA. (10) What happens if I have given positive in a test of antibodies anti-HIV but I have given a dubious result in the Western-Blot test? If this is the case, it would make a repeat of the Western-Blot within 4-6 months. If the result is still dubious, it is best performed a PCR test for the AIDS virus. If the result is negative, you’re not infected. If the result is positive if these infected. Santiago Badia pharmacist clinical analysis specialist since 1980. Original author and source of the article.