Do not use a needle smaller than a 21 gauge for collection. Obtain appropriate volume of blood in first tube labeled DISCARD. Obtain full tubes for sample specimens. It is best to store tubes by laying them on their side, instead of standing them in a rack.
Do not centrifuge sample specimen. Keep at room temperature.
For Marshfield orders - Samples performed as POC in the OR suite only.
For Eau Claire orders - Deliver to lab immediately. Sample should arrive in lab within 15 minutes of collection. Cannot be shared with other coagulation tests.