Factor X Activity
Draw blood in a light blue sodium citrate tube. See appendices for coagulation test collection instructions. Send 2.0 mL plasma frozen in a screw-capped vial.
Indicate on transport tube (plasma/light blue) and freeze. Contact lab for dry ice for shipment.
Frozen: 14 days
Factor X deficiency can cause severe bleeding after surgery or trauma, as well as repeated abortion and pre-term delivery, or bleeding from the umbilical cord stump in neonates.