Abstract: A device and method for performing a diagnostic test, including determining presence or absence of antibodies to a virus. The device displays the results on a display, and includes a retractable needle and an enclosure that houses the retractable needle, a vessel for collecting or storing a bodily liquid sample collected from the subject, an enclosure containing a diluent fluid that is mixed with the collected sample, and at least one area for mixing and performing analysis. A pressure sensor checks for pressure being applied by the test subject's finger during the test, and stops the test or disables display if it does not sense pressure of the test subject's finger during testing. A processor performs identification testing by scanning a digital fingerprint of the test subject by a digital scanner prior to evaluation, stores the data and evaluates the test results to determine whether the results exceed or reach a threshold value.