A method for performing a diagnostic test comprises generating a first visual trigger on a display screen of a mobile device responsive to activation of an application on the mobile device. An image of a diagnostic test presently viewed by a camera incorporated with the mobile device is displayed on the display screen of the mobile device. The diagnostic test has a second visual trigger thereon. The image and the first visual trigger are displayed on the display screen at a same time. An image is captured by the application of the diagnostic test responsive to alignment of the first visual trigger with the second visual trigger on the display screen of the mobile device. The captured image is processed to provide test results for the diagnostic test.