Home > Diabetes > How is Diabetes DIagnosed Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Jun 08, 2008 by ceciledoc, Views: 1413 People who have symptoms suggestive of diabetes, such as being thirsty, urinating frequently, tingling or numbness in your feet, or blurry vision should see a physician. The test to diagnose diabetes include a fingerstick blood sugar, a fasting blood sugar, or a glucose tolerance test- which measures blood sugar after ingesting sugar. Video courtesy of eMedTV.com