SAN DIEGO--(BUSINESS WIRE)--Accumetrics, Inc., developer of the VerifyNow® System, the first rapid and easy-to-use point-of-care system for measuring platelet reactivity to multiple antiplatelet agents, today announced that patients with high platelet reactivity, i.e. high PRU values as measured by the Accumetrics VerifyNow P2Y12 Test, exhibited an approximately four times higher rate of stent thrombosis than patients without high platelet reactivity, as seen in the ADAPT-DES registry. The 30-day results from the 8,500+ patient registry were presented today at the 2011 TCT conference in San Francisco. The VerifyNow P2Y12 Test is used to measure the level of P2Y12 receptor blockade and the antiplatelet effect of medications such as clopidogrel and prasugrel (Plavix® and Effient®).