Factor V Leiden Gene Test (G1691A)
Uncover your inherited risk of abnormal blood clotting.
The Factor V Leiden Gene Test (G1691A) is a genetic test that identifies whether you carry the Factor V Leiden mutation, the most common inherited risk factor for venous thrombosis. This test is for individuals with a personal or family history of blood clots, especially those that occur without clear cause or at a young age, and for those with a known family history of the mutation. It helps assess inherited thrombophilia risk and can guide decisions about prevention and management in consultation with your doctor.
Factor V Leiden Mutation
- Factor V Leiden (G1691A) mutation: Detects the presence of the G1691A variant in the factor V gene, which leads to activated protein C resistance and an increased tendency to form abnormal blood clots.
Why it matters
Identifying the Factor V Leiden mutation can provide valuable insight into your inherited risk of venous thromboembolism. Knowing your genetic status allows you and your clinician to make informed decisions about risk reduction, monitoring, and preventive strategies, particularly in situations that increase clotting risk such as surgery, pregnancy, or use of hormonal therapies.
Factor V Leiden Mutation
- Factor V Leiden (G1691A) mutation
No special preparation required.
For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.
Important Clinical Information:
This test is a screening tool to monitor and support your overall health. It does not replace your GP or consultant.
Always discuss your test results, especially any abnormal results, with your GP, who can interpret them in the context of your medical history and overall health.