Special Requirements

Three (3) 2.7 mL blue-top tubes required. Factor must be ordered that Inhibitor titer is requested. 1.8 mL blue top tube available. Blue-top tube must be filled to the draw line. If testing is not to be performed within 4 hours, separate the plasma from the cells, and centrifuge the plasma a second time. Decant plasma and freeze @ 20 degress C). Send frozen. Results may be affected by freezing.