Patent ID: 6232127
Filing Date: 2001-05-15
Classification: G01N,Y10T

Abstract:
A method for performing an activated clotting time test on a sample of citrated blood containing platelets, said method comprising the steps of:combining a platelet function restoration agent, an anticoagulant agent, a platelet activating agent, and the sample of citrated blood to be tested to form a test mixture, wherein said anticoagulant agent excludes any agent which serves to chelate calcium ions;activating the platelets of the sample by adding a clotting reagent to the test mixture at the start of the activated clotting time test;terminating the activated clotting time test upon detecting a predetermined change in a property of the test mixture; andcalculating the activated clotting time of the sample of citrated blood based on the elapsed time from the addition of the clotting reagent to the test mixture to the point in time at which said predetermined change in the property of the test mixture occurs.