About a year ago I got tested for HIV. First ELISA or EIA (are these the same?) test came back preliminarily positive, second came back positive, so lab routinely did a Westernblot which came back "indeterminate." The Westernblot test revealed "non-specific staining obscuring bands in that region."
Doc told me to go get another test in one month. ELISA came back non-reactive/negative for both HIV-1 and HIV-2.
Should I trust these results? No sexual exposures prior to testing (at all) and no intravaneous drug use, whatsoever.