Samples are processed by centrifugation, typically followed by physical separation of the
serum or plasma from the red cells. The centrifugation step may occur up to 24 hours post
draw. When testing 10 serum samples where the centrifugation step was varied up to 24
hours post draw, no clinically significant differences were observed. Time to
centrifugation was established for serum only. User must establish time to centrifugation
for other matrices.