Orderable EAP code:

LAB00259

Billable EAP Codes:

80001097 x 1

CPT Codes:

85270 x 1

Lab Section:

Hemostasis and Thrombosis

Turnaround Time:

1 to 3 days

Test Schedule:

Monday, Wednesday, and Friday

Units:

%

Critical Values:

Less than 5%.

Specimen Requirements:

Two full 2.7 mL LIGHT BLUE top tubes, 3.2% sodium citrate. Specimens must be processed and frozen within 2 hours of specimen collection.

Send 2- 1 ml aliquots of platelet poor plasma, samples must remain frozen during storage and shipment.

Stability is 14 days at -20° C or at –70°C for up to 12 months.

Detailed specimen collection and processing instructions are located under Lab Sections and then the Hemostasis and Thrombosis (Opens in a new window) section.

Pediatric Specimen Requirements:

1 full pediatric 1.3 mL LIGHT BLUE top tube, 3.2% sodium citrate. Specimens must be processed and frozen within 2 hours of specimen collection.

 

Send 1 600 uL aliquot of platelet poor plasma, samples must remain frozen during storage and shipment. 

 

Stability is 14 days at -20°C or at –70°C for up to 12 months.

For pediatric patients requiring multiple coagulation tests, please call 503-494-7383 regarding draw volumes.

Reference Range:

65% to 150%

For children less than 6 months, see link to published reference ranges (Opens in a new window).

Comments:

Refer to FACTOR XI (11) ACTIVITY W/REFLEX TO INHIBITOR [LAB101691] if inhibitor testing is desired.

Synonyms:

Factor 11

Factor 11A

Factor XI

FXIA