Oncology Questions? Ask an Oncologist for Answers ASAP
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Most of the HIV tests are antibody tests that measure the antibodies your body makes against HIV. The immune system can take some time to produce enough antibodies for the antibody test to detect, and this time period can vary from person to person, and is commonly referred to as the “window period.” Majority will develop detectable antibodies within 2 to 8 weeks (the average is 25 days). Therefore with a negative test you need not worry about HIV infection. The antibody test is a pretty accurate test, and the sensitivity of this test is more than 99% after first 2– 4 months of infection, and specificity is 99%. A fourth generation) will look for both the particles of the HIV virus as well as antibodies and is able to detect HIV as soon as 14 to 20 days after exposure.
Therefore in your case HIV test is confirmatory and your doctor needs to look out for other causes for your enlarged lymph nodes.
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