Factor V Leiden Thrombophilia: F5 Targeted Analysis

F5 targeted analysis is a molecular test used to identify the common R506Q/p.Arg534Gln variant in the gene associated with Factor V Leiden thrombophilia.

Turnaround Time

7 days

CPT Code(s)

81241

Cost

$150

Genes

• Factor V Leiden Factor 5 thrombophilia

Molecular testing is useful to confirm the diagnosis and to identify the disease causing mutations within a family.

The preferred sample type is 3-5 ml of peripheral blood collected in an EDTA (purple top) tube. Extracted DNA, dried blood spots, and saliva are also accepted for this test. Saliva samples must be submitted in an approved saliva kit. Contact the lab to receive a saliva kit or to have one sent to your patient.

The specimen should be kept at room temperature and delivered via overnight shipping. If shipment is delayed by one or two days, the specimen should be refrigerated and shipped at room temperature. Do not freeze the specimen. Samples collected on Friday can be safely designated for Monday delivery.