Medically Reviewed By
Dr. Srinivas
Consultant Pathologist
Pathology · Last reviewed: June 2026

Book This Test
Fill in your details and connect with our team instantly on WhatsApp.
ANTI CARDIOLIPIN AB IGM
Get reliable diagnostics, expert support, and a seamless booking experience with Focus Diagnostics.
About this test
The Anti-Cardiolipin Antibody (IgM) Test is a specialized blood test used to detect Immunoglobulin M (IgM) antibodies against cardiolipin, a phospholipid found in cell membranes. These antibodies are one of the key laboratory markers used in diagnosing Antiphospholipid Syndrome (APS), an autoimmune disorder that increases the risk of abnormal blood clot formation.
The Anti-Cardiolipin IgM Test helps physicians investigate unexplained blood clots, recurrent pregnancy loss, and autoimmune diseases such as Systemic Lupus Erythematosus (SLE). It is commonly performed along with Anti-Cardiolipin IgG, Anti-β2 Glycoprotein I antibodies, and Lupus Anticoagulant testing for a comprehensive APS evaluation.
Benefits of the Test
- Helps diagnose Antiphospholipid Syndrome (APS).
- Detects Anti-Cardiolipin IgM antibodies accurately.
- Assists in evaluating unexplained blood clots.
- Supports investigation of recurrent miscarriages.
- Helps assess autoimmune disorders associated with APS.
- Guides treatment planning and long-term monitoring.
Why Doctors Recommend This Test
Doctors may recommend the Anti-Cardiolipin IgM Test for individuals with symptoms or medical conditions suggestive of Antiphospholipid Syndrome, including:
- Deep vein thrombosis (DVT)
- Stroke or transient ischemic attack (TIA) at a young age
- Pulmonary embolism
- Recurrent miscarriages
- Stillbirth or pregnancy complications
- Unexplained blood clotting disorders
- Positive lupus or autoimmune disease evaluation
- Low platelet count (thrombocytopenia)
The test is often ordered together with Anti-Cardiolipin IgG, Anti-β2 Glycoprotein I Antibodies, Lupus Anticoagulant, ANA Profile, and other autoimmune investigations.
Preparation Before Test
- No fasting is required.
- Continue routine medications unless advised otherwise by your physician.
- Inform your healthcare provider about blood thinners, autoimmune conditions, and recent illnesses.
- A blood sample is collected for laboratory analysis.
Normal Reporting Time
Reporting Time: Usually 2–5 working days, depending on laboratory processing protocols.
Who Should Take This Test?
This test is recommended for:
- Individuals with unexplained blood clots.
- Women with recurrent miscarriages or pregnancy complications.
- Patients with suspected Antiphospholipid Syndrome (APS).
- Individuals with Systemic Lupus Erythematosus (SLE).
- Patients with unexplained thrombosis or low platelet counts.
- Individuals referred by rheumatologists, hematologists, or obstetricians.
Patient-Friendly Summary
The Anti-Cardiolipin Antibody (IgM) Test is a blood test that detects antibodies associated with Antiphospholipid Syndrome (APS), an autoimmune disorder that causes the immune system to mistakenly attack certain proteins involved in normal blood clotting. This condition increases the risk of abnormal blood clots, stroke, deep vein thrombosis (DVT), and recurrent pregnancy loss. The test is often performed in individuals with unexplained clotting disorders or repeated miscarriages and is commonly combined with other antiphospholipid antibody tests for a complete evaluation. The test is safe, requires only a blood sample, and does not require fasting.
Test FAQs
What is the Anti-Cardiolipin IgM Test?
Why is this test performed?
Is fasting required before the test?
What sample is required?
What conditions can this test help diagnose?
Is this test performed with other antiphospholipid antibody tests?
Can this test help investigate recurrent pregnancy loss?
How long does it take to receive results?
Is the Anti-Cardiolipin IgM Test safe?
What should I do if my result is positive?
Find Your Nearest Focus Diagnostic Centre Hyderabad
Popular Lab Tests in Other Cities
Telangana
Andhra Pradesh
Popular Tests in Hyderabad
Book Your lab tests instantly
Accurate reports and home sample collection across Hyderabad
@2025 Focus Diagnostic & Healthcare Research Private Limited. All rights reserved