The CMIA (Chemiluminescent Microparticle Immunoassay) HIV test is highly sensitive and specific for detecting antibodies to HIV. However, the conclusive window period for HIV tests can vary depending on the specific test used and individual factors such as immune response.
Generally, most healthcare professionals consider the CMIA HIV test to be conclusive after 90 days post-exposure. This is because the majority of individuals who have been infected with HIV will develop detectable antibodies within this timeframe. However, some guidelines suggest that the CMIA test can provide accurate results as early as 45 days post-exposure.
While a negative result at 75 days may be encouraging, it's still recommended to follow up with a healthcare provider for confirmatory testing at the appropriate window period to ensure accurate results and peace of mind. Additionally, if there are ongoing concerns about potential HIV exposure or symptoms suggestive of HIV infection, it's important to seek medical advice promptly.