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FXIII
COAGULATION FACTOR XIII ASSAY, PLASMA

Test Code FXIII 
Test COAGULATION FACTOR XIII ASSAY, PLASMA 
Description Useful in the diagnosis of delayed bleeding. 
Specimen Collect specimen as follows:
1. Draw blood in light blue-top (3.2% sodium citrate) tube(s). Separate plasma from cells within 1 HOUR of collection in a centrifuge at 2,500 rpm for 15 minutes or 3,000 rpm for 10 minutes.
2.Using a plastic transfer pipette (do not use a glass pipette) decant the plasma to a screw-capped, plastic (polypropylene) vial. (Glass vials will not be accepted.)
3. Divide the specimen into as many 0.5 - 1.0 mL aliquots as possible and cap the vial(s) tightly.
4. Freeze specimen(s) immediately at <= -40 C.
5. Send specimen(s) FROZEN on dry ice.

NOTE:
1. SPECIMENS WILL BE REJECTED IF UNDERFILLED (< 90%), CLOTTED, HIGH HEMATOCRIT (> 55%), OR GROSSLY HEMOLYZED.
2. Follow "Special Procedure for Drawing Specimen from an A-line". 

Reference Values An interpretive report will be issued. 
Analytic Time 2 Days 
Day(s) Test Set Up Available upon request Monday through Friday 8 a.m.- 3 p.m. 
CPT Code(s) 85291  

Special Instructions