The Omega-3 Index Complete Test measure all the fatty acids in the blood, and reports levels of all 24 fatty acids as well as the Omega-3 index, Ratios, and the Trans Fat Index. Learn more about your cells with the Omega-3 Index Complete Test. This test measures: Omega-3 Index; Omega-6:Omega-3 Ratio; AA:EPA Ratio; Trans Fat Index; Individual fatty acid levels