FACTOR 8 ASSAY

General Information

HLAB/HOL Code: FAC8
UPHSM LIS Test #: 3150
Schedule: Tueday - Friday (will perform STAT)
Testing Time: 1 day
Testing Lab: UP Health System-Marquette

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 2ml plasma
Temperature: Frozen
Tube Type: 1 Light- Blue Top (Citrate)
Collection Info:
Spin specimen with a Sure-Sep II or spin down, remove plasma, and spin plasma again. Place plasma in plastic vial and freeze immediately.
A. Sure Sep II or double centrifuging specmens are critical for accurate results as platelet contamination may cause spurious results.
B. Patient should not be receiving heparin or coumadin.

Methods

Photo optical clot detection

Clinical Utilities

Diagnosing factor VIII deficiency (hemophilia A) and aiding in the diagnosis of classic von Willebrand disease.

CPT Codes

85240

* The CPT codes provided 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 payer being billed.

Reference Range

60 - 190 % Activity