Test Directory
5407 Factor V Leiden Mutation
Specimen Type
Specimen Stability
Reference Range
Whole blood-Lavender top tube
8 days 2-8°C
Not Detected
Specimen Requirements
Full 7-10mL tube of Whole blood
Method
PCR-Invader
Schedule
Tues, Thurs, Sat
Turn-Around Time
2-3 Days
Instructions/Notes
Clinical Utility
The Factor V Leiden (G1691A) mutation is present in 45% of familial thrombophilia cases and is the most common genetic risk factor identified in patients with deep vein thrombosis. Individuals who are heterozygous for the Factor V Leiden mutation have a 5- to 10-fold increased risk of venous thrombosis, while homozygous individuals have a 50- to 100-fold increased risk of venous thrombosis.
CPT Codes
83891, 83892, 83898, 83896x3, 83903, 83908, 83912; NOTE: New 2013 CPT: 81241
