FACTOR V LEIDEN SCREEN (APC RESISTANCE)

General Information

HLAB/HOL Code: FAC5L
UPHSM LIS Test #: 8624
Schedule: Tuesday - Friday
Testing Time: 1 day
Testing Lab: UP Health System-Marquette

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 1.0 mL plasma
Temperature: Frozen
Tube Type: 1 Blue Top (Citrate)
Collection Info:
Platelet poor plasma required. Spin specimen with a Sure-Sep II or double spin by first spinning and removing plasma, then spin plasma again, removing and freezing immediately.  Test may be performed on patients on stabilized oral anticoagulant, heparin and low molecular weight heparin therapy.

Methods

Activated Protein C resistance, functional clotting test.

Clinical Utilities

Screening test for Factor V Leiden defect which is the most common cause of inherited thrombophilia. An abnormal test should be followed up with Factor V Leiden R506Q gene mutation.

CPT Codes

85307

* 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

Ratio of: 2.2 - 6.0