FACTOR 10 ACTIVITY, PLASMA

Message

This test measure activity of the F10 clotting factor. It is NOT used to measure the effects of factor Xa inhibitors (eg, heparin, LMWH,rivaroxaban, apixaban).
This test is performed to assess functional factor 10 as seen with increased PT or aPTT (bleeding problem). For evaluation of
therapeutic low molecular weight heparin (Enoxaparin), please refer to anti-Xa assay (LMWH) or unfractionated

Test Code

LAB30435

CPT Codes
85260, LOiNC:3218-5

Preferred Specimen

One 3 mL blue top tube
Pediatric: One 1.8 mL pediatric blue top tube

Minimum Volume

1 mL Plasma

Instructions

Tube must be filled to the etched line to perform testing.
Samples must be centrifuged at 3000 rpm for 10 minutes or using a high-speed centrifuge. Platelet poor plasma should be separated into 1 ml aliquots. Samples should be frozen within one hour (best practice), however samples stable for 4 hours. Samples must remain frozen during transport. Any samples that are received thawed are not suitable for testing.

Transport Temperature

Frozen (two 1 mL plasma aliquots)

Specimen Stability

Ambient: 4 hours if cap has not been removed or punctured
Frozen: 6 months (-70C)

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Clotted specimen, underfilled tube, or gross hemolysis.

Methodology
Prothrombin clot-based assay on ACL-TOP

Setup Schedule

Monday-Friday

Reference Range

77-131%

Performing Laboratory
West Virginia University Hospital, Inc.

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.