Factor V Leiden Mutation Test: Booking, Price, and Results
About Factor V Leiden Mutation Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | FVL mutation test, Factor V Leiden genetic test, F5 R506Q mutation test, Activated protein C resistance mutation test |
| Sample Type | Venous blood (whole blood in an EDTA tube) |
| Fasting Required | No |
| Report Time | 3 to 7 working days |
| Recommended For | Adults with unexplained blood clots, family history of thrombophilia, or recurrent miscarriages, both males and females |
| Price | Starting at ₹1,450 |
What Is a Factor V Leiden Mutation Test?
The Factor V Leiden mutation test is a genetic blood test that checks for a specific inherited mutation in the F5 gene, which encodes a clotting protein called Factor V. This mutation can cause the blood to clot more readily than normal, increasing the risk of abnormal clots. Doctors order this test for patients who have had unexplained blood clots, recurrent miscarriages, or a family history of clotting disorders. It is also known as the FVL mutation test or the activated protein C resistance mutation test.
What Does a Factor V Leiden Mutation Test Measure?
The test analyses a single point mutation in the F5 gene to determine whether the mutation is present and, if so, how many copies a person carries. Here are the key parameters it evaluates:
| Parameter | What It Assesses |
|---|---|
| Factor V Leiden Mutation (G1691A) | Checks for the specific genetic change in the F5 gene that prevents normal clot regulation |
| Zygosity Status | Determines whether one copy (heterozygous) or two copies (homozygous) of the mutation are present |
| APC Resistance Ratio | Measures how well activated protein C (APC) inactivates Factor V; a ratio below 2.0 suggests resistance |
Why Is a Factor V Leiden Mutation Test Done?
This test helps determine whether an inherited gene mutation contributes to a person's tendency to form abnormal blood clots. Below are the main reasons a doctor may request it.
Common Symptoms That May Require This Test
Several signs and circumstances may prompt a doctor to order a Factor V Leiden genetic test:
- An unexplained blood clot in the leg or lung, particularly in people under 50
- Pain, swelling, or redness in the leg, which may suggest a deep vein thrombosis
- Sudden shortness of breath or chest pain that has no clear cause
- Blood clots forming in unusual locations such as the liver, kidneys, or brain
- Two or more unexplained miscarriages or pregnancy loss in the second or third trimester
- A close family member diagnosed with a clotting disorder or thrombophilia
Conditions This Test Can Help Detect
The Factor V Leiden mutation test can help identify or confirm the following conditions:
- Factor V Leiden thrombophilia: An inherited disorder that raises the risk of abnormal blood clots in the veins
- Deep vein thrombosis (DVT), where clots form in the deep veins of the legs
- Pulmonary embolism (PE), where a clot travels to the lungs
- Inherited thrombophilia, a general term for an elevated tendency to clot excessively
Factor V Leiden Mutation Test During Pregnancy
Women who carry the Factor V Leiden mutation face a five to eight times greater risk of pregnancy-related blood clots compared with those without the mutation. The mutation is also associated with a two to three times higher likelihood of recurrent miscarriages or pregnancy loss in the later trimesters. For this reason, Factor V Leiden testing is recommended for women who experience blood clots during pregnancy or while using oral contraceptives.
How to Prepare and What to Expect
No special preparation is needed for this test. Here is what you should know before your appointment.
Do You Need to Fast?
No fasting is required for the Factor V Leiden mutation test. You can eat and drink as usual before the sample is collected.
Practical Tips Before Your Test
A few simple steps can help ensure your visit goes smoothly:
- Tell your doctor about any medications you are taking, including blood thinners or hormonal contraceptives
- Inform your healthcare provider if you have had a bone marrow transplant from another person, as this can interfere with the DNA analysis
- Share your personal and family history of blood clots or clotting disorders with your doctor
- No dietary restrictions apply before this test
Step-by-Step Procedure
The sample collection process is quick and straightforward. Here is what to expect:
- A trained phlebotomist (a professional who draws blood) cleans the skin over a vein, usually on the inner elbow, with an antiseptic solution.
- A sterile needle is used to draw a small amount of blood from the vein.
- The blood is collected in a tube containing a preservative called EDTA, which keeps the sample stable.
- The tube is labelled with your details and sealed for transport to the laboratory.
- In the lab, scientists use a technique called PCR (polymerase chain reaction) to identify the specific DNA sequence associated with the Factor V Leiden mutation.
- Results are typically ready within 3 to 7 working days and delivered digitally.
Factors That Can Affect Accuracy
Certain factors may influence the accuracy of your Factor V Leiden results:
- Recent blood transfusions, which may introduce donor DNA
- A prior bone marrow transplant from a donor, which can alter the DNA found in the blood
- Anticoagulant medications such as warfarin, recent pregnancy, or liver disease
- Hormonal contraceptives and certain other medications
- Technical variability in laboratory processing
Understanding Your Factor V Leiden Mutation Test Results
Your result will indicate whether the mutation is absent or present, and whether it is present in one or both copies of the F5 gene. Always review your results with a qualified doctor who can place them in the context of your personal health history.
| Result | Interpretation |
|---|---|
| Negative (no mutation detected) | Normal; standard risk of blood clots |
| Heterozygous (one copy of the mutation) | Moderate increase in clotting risk; approximately 5 times higher than average |
| Homozygous (two copies of the mutation) | Significantly elevated clotting risk; approximately 80 times higher than average |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
A positive Factor V Leiden mutation test result does not exist in isolation. Other factors can compound the clotting risk further:
- Pregnancy itself raises the baseline risk of blood clots by five to ten times; carrying the Factor V Leiden mutation alongside pregnancy increases the risk further.
- Carrying both a Factor V Leiden mutation and a mutation in the F2 gene (prothrombin gene) raises the risk of venous clots approximately 20 times.
- Other risk factors that interact with the mutation include smoking, prolonged immobility, surgery, oral contraceptive use, hormone replacement therapy, and conditions such as cancer.
How to Maintain Healthy Levels
While the gene mutation itself cannot be changed, certain habits can help lower everyday clotting risk:
- Stay physically active and break up long periods of sitting, particularly on flights or long car journeys.
- Drink enough water daily to stay well hydrated, as dehydration can thicken the blood.
- If you are facing surgery or a period of bed rest, inform your doctor that you carry the Factor V Leiden mutation so appropriate precautions can be taken.
Lupin Diagnostics Factor V Leiden Mutation Test Price and Home Collection
The Factor V Leiden mutation test price at Lupin Diagnostics starts from approximately ₹1,450, with home sample collection available across major Indian cities. Prices vary depending on your location.
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹2,900 |
| Bangalore | ₹2,900 |
| Chennai | ₹2,900 |
| Hyderabad | ₹2,900 |
| Kolkata | ₹2,900 |
| Pune | ₹2,900 |
| Ahmedabad | ₹2,900 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home sample collection for the Factor V Leiden genetic test across cities in India, so you do not need to visit a centre unless you prefer to. All samples are processed in NABL-accredited laboratories staffed by experienced scientists. Your digital report is shared securely via email or WhatsApp once ready.
Frequently Asked Questions
Factor V Leiden is an inherited gene mutation that can cause the blood to clot more readily than normal. It is the most common inherited clotting disorder worldwide. People who carry this mutation have a higher-than-average risk of developing abnormal blood clots, particularly in the veins.
Testing is generally recommended if you have had a blood clot, especially if it occurred at a younger age or without an obvious cause. This test is also suggested if a close biological family member has been diagnosed with a clotting disorder, or if you have experienced two or more unexplained miscarriages. Your doctor is best placed to advise whether the test is right for you.
Not necessarily. Only around 10% of people who carry the Factor V Leiden mutation ever develop an abnormal blood clot. Many people with the mutation live without ever experiencing a clotting event, particularly when they are aware of the risk and take sensible precautions.
Yes. If you carry one copy of the mutation (heterozygote), each of your children has a 50% chance of inheriting it. The mutation follows an autosomal dominant inheritance pattern, meaning only one copy needs to be inherited for the trait to be passed on. If you have two copies of the mutation, i.e., are homozygous, then your children will inherit at least one of the mutated genes.
Results are usually available within 3 to 7 working days from the date of sample collection. Lupin Diagnostics delivers reports digitally via email or WhatsApp.
No treatment corrects the gene mutation. Correct management focuses on reducing the risk of blood clots through lifestyle measures and, when necessary, medications that your doctor may prescribe. If a clot has already formed, your doctor will guide appropriate care.
Women who carry the mutation, particularly those who have already had a blood clot, are generally advised to discuss the risks of oestrogen-containing contraceptives with their doctor. Alternative contraception options are available, and your doctor can help you choose the most appropriate one based on your full health profile.
Factor V Leiden Mutation Test: Booking, Price, and Results
