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Test Code LAB758 Factor X (10) Assay

Additional Codes

CF X

Collection:

Specimen: Blood 

Container: Blue Top Tube with 3.2% (0.109 M) buffered Sodium Citrate anticoagulant only

Specimen Volume: 3.5 mL Must be filled to arrow (Greiner tube Black Disk) or line (BD)

Pediatric Collection: 2.0 mL Must be filled to arrow (Greiner tube White Disk) or line (BD)

Notes: 

Stability:

Room Temperature: 4 hours Whole Blood

Refrigerated: 4 hours Whole Blood

Frozen at or below -20°C: 2 weeks 

Note: Frozen samples must be platelet poor plasma aliquoted from primary tube. Label as Na Citrate or blue top plasma.

Turnaround Time (TAT):

STAT: 2 HOURS

Routine: Batched Monday - Friday at 0800 and 1200

Test Availability:

Daily / 0800 and 1200 / Available STAT (OR - Transplant, ER)

Reference Interval:

Adult: 50 – 150 % activity

</=30 days (full term infant): 45 – 73 % activity

Interpretive Data:

Reference ranges for infants less than or equal to 30 days are for full term healthy infants only. Call the Coagulation Lab to obtain reference values for premature healthy infants.

Performed Laboratory Section:

COAGULATION / UMC MAIN LABORATORY