Factor XII Activity (LABCORP)

Test Code
1231100384


Alias/See Also
LAB310: Factor XII (12) Activity | LABCORP EAP: 086322


CPT Codes
85280x1

Preferred Specimen
LABCORP LAB: LT BLUE TOP-CITRATE (Frozen) Min Vol: 1


Transport Temperature
Specimen Type: Plasma, FROZEN Container: Blue-top (sodium citrate) tube Storage: Freeze Special Instructions: If the patient’s hematocrit exceeds 55%, the volume of citrate in the collection tube must be adjusted. Refer to Coagulation Collection Procedures for directions. Specimen Collection: Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.(1) Evacuated collection tubes must be filled to completion to ensure a proper blood-to- anticoagulant ratio.(2,3) The sample should be mixed immediately by gentle inversion at least six times to ensure adequate mixing of the anticoagulant with the blood. A discard tube is not required prior to collection of coagulation samples unless the sample is collected using a winged (butterfly) collection system. With a winged blood collection set a discard tube should be drawn first to account for the dead space of the tubing and prevent under-filling of the evacutated tube.(4,5) When noncitrate tubes are collected for other tests, collect sterile and nonadditive (red-top) tubes prior to citrate (blue-top) tubes. Any tube containing an alternative anticoagulant should be collected after the blue-top tube. Gel-barrier tubes and serum tubes with clot initiators should also be collected after the citrate tubes. Please print and use the Volume Guide for Coagulation Testing to ensure proper draw volume. specimens for each test requested. Please print and use the Volume Guide for Coagulation Testing to ensure proper draw volume. Method: Latex Immunoassay prepcipitated out with polyethylene glycol. Stability Room Temp: Not Available Refrigerated: Not Available Frozen: Not Available


Report Available
LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min



Last Updated: March 6, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.