Cardiolipin Antibody IgG Test:
About Cardiolipin Antibody IgG Test:
| Field | Value |
|---|---|
| Also Known As | ACL-IgG test, Anti-Cardiolipin IgG, Antiphospholipid Antibody IgG, Phospholipid Antibody IgG, aCL IgG |
| Sample Type | Venous blood (serum) |
| Fasting Required | No fasting required |
| Report Time | 3 to 4 working days |
| Recommended For | Adults of all genders, particularly women with recurrent pregnancy loss or individuals with unexplained blood clots |
| Price | Starting at ₹800 |
What Is a Cardiolipin Antibody IgG Test?
The Cardiolipin Antibody IgG Test checks your blood for IgG antibody that targets cardiolipin, a fat-like substance involved in normal blood clotting. When the immune system mistakenly produces these antibodies, it can interfere with clotting and raise the risk of complications. Doctors order this ACL-IgG test to investigate unexplained blood clots, recurrent pregnancy loss, or suspected autoimmune conditions.
What Does a Cardiolipin Antibody IgG Test Measure?
This test measures the level of IgG-class antibodies directed against cardiolipin in your blood serum. IgG antibodies are produced later in an immune response and persist in the body for longer, making this test useful for identifying ongoing or persistent immune activity. The table below summarises what the test detects.
| Component | What It Tells Us |
|---|---|
| Cardiolipin IgG Antibodies | Detects IgG antibodies that target cardiolipin, a phospholipid involved in blood clotting. Elevated levels suggest possible autoimmune activity and an increased risk of clotting. |
Why Is a Cardiolipin Antibody IgG Test Done?
A doctor may request this test for several reasons, from investigating symptoms to confirming a diagnosis.
Common Symptoms That May Require This Test
The following symptoms are among the common reasons a doctor may prescribe the Antiphospholipid Antibody test:
- Pain or swelling in one leg, which may suggest a clot in a deep vein
- Unexplained shortness of breath or chest pain
- Skin discolouration or livedo reticularis (a mottled, net-like skin pattern)
- Two or more unexplained miscarriages
- Coughing (with blood)
- Headaches or strokes without a clear cause
- Rapid heart rate
- Family history of blood clots
Conditions This Test Can Help Detect
This test can assist in identifying several conditions. These include:
- Antiphospholipid syndrome (APS), an autoimmune condition linked to blood clots and pregnancy complications
- Systemic lupus erythematosus (SLE), where cardiolipin antibody levels are often elevated
- Unexplained arterial or venous blood clots
- Low platelet count (thrombocytopenia), a condition where the blood has fewer clotting cells than normal
- Preeclampsia or premature labour in at-risk pregnancies
Cardiolipin Antibody IgG Test During Pregnancy
The Cardiolipin Antibody IgG Test is particularly important for women with a history of unexplained pregnancy loss. Antiphospholipid syndrome can cause recurrent early miscarriages, late pregnancy loss, premature birth, and complications such as preeclampsia due to problems with placental blood flow. Both IgG and IgM cardiolipin antibodies are associated with a higher risk of recurrent pregnancy loss.
Cardiolipin Antibody IgG Test for Chronic Disease Monitoring
For people already diagnosed with APS or related autoimmune conditions such as SLE, this test plays an ongoing role in care. Tracking antibody levels over time helps doctors assess how well treatment is working and monitor the risk of future clots. Because the diagnosis of APS requires antibodies to be detected on at least two occasions, at least 12 weeks apart, repeat testing is a standard part of confirming and managing the condition.
How to Prepare and What to Expect
No special preparation is needed, but a few simple steps will help your visit go smoothly.
Do You Need to Fast?
No fasting is required before the Anti-Cardiolipin IgG test. If your doctor has ordered additional tests alongside this one, check whether those tests have their own fasting requirements.
Practical Tips Before Your Test
Keep the following points in mind before your appointment:
- Tell your doctor about all medications, supplements, or herbal remedies you are currently taking
- Drink enough water beforehand, as staying well hydrated makes blood collection easier
- Wear clothing with loose or short sleeves so the collection site is easy to reach
Step-by-Step Procedure
Here is what typically happens during sample collection:
- A trained phlebotomist will ask you to sit comfortably and confirm your details.
- An elastic band is tied around your upper arm to make the vein easier to see.
- The skin is cleaned with an antiseptic, and a fine needle is gently inserted into a vein in your arm or hand.
- A small amount of blood is drawn into a sterile collection tube.
- The needle is removed, and a bandage is placed over the puncture site.
- The sample is labelled and sent to the laboratory, where serum is separated promptly for accurate analysis.
Factors That Can Affect Accuracy
Several factors may influence the accuracy of your result:
- Certain infections, including syphilis, HIV, and some acute bacterial or viral illnesses, can cause temporary false-positive results
- Medications such as phenytoin, penicillin, and procainamide may cause transient antibody elevations
- Other autoimmune conditions, such as SLE, can affect antibody levels
- Older age is associated with a higher chance of false-positive readings
- Poor sample handling or delays in separating the serum can affect the quality
Understanding Your Cardiolipin Antibody IgG Test Results
Your results should always be reviewed with your doctor, who will consider them alongside your symptoms and medical history. The table below shows the general reference ranges used to interpret this test.
| Result Category | Range (GPL U/mL) | What It Suggests |
|---|---|---|
| Negative | Less than 15 | No significant antibody activity detected |
| Intermediate | 15 to 20 | Low-level antibody activity; may need repeat testing |
| Positive | Greater than 20 | High antibody levels may indicate active APS or significant autoimmune activity |
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
- Acute bacterial or viral infections, including syphilis, can trigger transient cardiolipin antibody production. These infection-related antibodies typically disappear on their own and are not linked to a higher risk of clotting complications.
- Additionally, specific medications such as phenytoin, penicillin, and procainamide may cause temporary elevations that are not clinically significant.
- Reference values can also vary slightly between laboratories depending on the testing method used.
How to Maintain Healthy Levels
These general wellness habits support overall immune and cardiovascular health:
- Follow a balanced diet and stay physically active to support healthy circulation
- Avoid smoking, as it raises the risk of blood clots independently of antibody levels
- Attend all follow-up appointments if your doctor has recommended repeat testing to monitor antibody levels over time
Lupin Diagnostics Cardiolipin Antibody IgG Test Price and Home Collection
The Cardiolipin Antibody IgG Test at Lupin Diagnostics starts at ₹800 for the IgG-only test, with home sample collection available across cities in India. The table below shows approximate prices for the IgG test across major cities.
| City | Approximate Price (₹) |
|---|---|
| Bhopal | ₹800 |
| Hyderabad | ₹800 |
| Mumbai | ₹800 |
| Bengaluru | ₹800 |
| Chennai | ₹800 |
| Kolkata | ₹800 |
| Pune | ₹800 |
| Bhubaneshwar | ₹800 |
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 3 to 4 working days.
Home Collection
Lupin Diagnostics offers home sample collection for the Antiphospholipid Antibody test across multiple cities in India. All samples are processed in NABL-accredited laboratories, ensuring accurate and reliable results. Your digital report is delivered directly to your email or WhatsApp, so you can share it with your doctor without any delay.
Frequently Asked Questions
This test detects IgG antibodies that target cardiolipin, a substance involved in blood clotting. Doctors use it to investigate unexplained blood clots, recurrent miscarriages, and suspected antiphospholipid syndrome. It is also used alongside other antibody tests to confirm or rule out APS.
No fasting is needed before the Anti-Cardiolipin IgG test. You can eat and drink normally on the day of your appointment. Do let your doctor know about any medications you are taking, as some can affect results.
A diagnosis of antiphospholipid syndrome requires antibodies to be detected on at least two separate occasions, at least 12 weeks apart. This approach helps confirm that the antibodies are persistent rather than a short-term reaction to an infection or medication.
Yes, acute infections, HIV, and certain medications can cause a temporary positive result. These transient antibodies usually do not carry the same clinical risks as persistent ones. Your doctor will consider your full picture before drawing any conclusions.
A positive result indicates that cardiolipin antibodies are present in your blood, which may raise your risk of blood clots or pregnancy complications. It does not mean complications will definitely occur. Your doctor will interpret the result alongside your symptoms and other test findings before advising any next steps.
Yes, particularly for women who have had two or more unexplained miscarriages. The Cardiolipin Antibody IgG Test helps identify antiphospholipid syndrome, which is a treatable cause of recurrent pregnancy loss. Early detection means appropriate care can be put in place to support a healthier pregnancy.
Doctors often order this test alongside the Cardiolipin IgM antibody test, lupus anticoagulant, and anti-beta-2 glycoprotein 1 antibody tests. Together, these tests provide a fuller picture needed to confirm or exclude antiphospholipid syndrome according to established diagnostic criteria.
Cardiolipin Antibody IgG Test:
