PROTEIN C (ACTIVITY)
Draw blood in a light blue sodium citrate tube. See appendices for coagulation test collection instructions.
Send 1.0mL plasma frozen in a screw-capped plastic vial. Indicate “plasma/blue top” on vial.
Separate sample should be submitted when multiple tests are ordered.
Performed Tues & Friday
Protein C deficiency can lead to thrombotic complications. Acquired Protein C deficiency is noted in coumadin therapy, DIC, acute thromboembolic disease, severe liver disease, hemolytic uremic syndrome and in TTP.