Also called: ACA, Antiphospholipids, Cardiolipin Antibodies
Report
{context.blood_test.parameters} Parameters
What it checks
Report delivery
Test for
Age group
Commonly advised for
The Anti-Cardiolipin Antibody IgG test detects IgG antibodies against cardiolipin, which are associated with antiphospholipid syndrome (APS). This condition causes abnormal blood clotting and is important in recurrent pregnancy loss. It serves as an autoimmune diagnostic marker.
Why Is This Test Recommended?
This test is recommended for:
Recurrent miscarriages
Unexplained thrombosis
Autoimmune disease evaluation
Stroke in young individuals
Lupus assessment
Understanding Anti-Cardiolipin IgG
Persistent positivity indicates APS. Transient rise may occur during infection. High titers increase clot risk. Results must be confirmed after 12 weeks and are often combined with lupus anticoagulant testing.
Symptoms or Conditions That May Require This Test
Recurrent pregnancy loss
Deep vein thrombosis
Stroke at young age
Autoimmune symptoms
Unexplained clotting episodes
How Do I Prepare for the Test?
No fasting required. Blood is drawn from a vein. Inform your doctor about autoimmune history. Repeat testing is required for confirmation.
How Is the Test Performed?
A blood sample is collected from a vein in your arm. The procedure is safe and quick.
What Happens After the Test?
A positive test requires confirmation with repeat testing after 12 weeks. Results guide long-term anticoagulation therapy. Pregnancy monitoring is essential for affected women. Combined marker interpretation is needed, and specialist consultation is advised.
What Do the Results Mean?
Results are typically reported in GPL units (where 1 GPL unit equals the binding activity of 1 microgram of IgG antibody).
Negative (< 15 GPL): This is considered a normal result, indicating that significant levels of IgG antibodies were not detected at the time of the test.
Weakly Positive (15 – 40 GPL): Low levels may be present due to age, recent infections, or certain medications and may not be clinically significant.
Positive (> 40 GPL): Moderate to high levels suggest a strong association with Antiphospholipid Syndrome or an underlying autoimmune condition.
Important Clinical Rule: A diagnosis of APS is never made based on a single positive result. Because these antibodies can appear temporarily, international guidelines require a repeat test 12 weeks later. If the second test is also positive, the antibodies are considered "persistent," and a diagnosis can be confirmed.
Frequently Asked Questions (FAQs)
Is one positive test enough?
No, a single positive result must be confirmed with repeat testing after at least 12 weeks to diagnose antiphospholipid syndrome.
Can infection cause positivity?
Yes, transient elevations can occur during infections or acute illness, which is why confirmation testing is essential.
Is it treatable?
Manageable; while not curable, APS is manageable with anticoagulant therapy and close monitoring to prevent complications.
Is it hereditary?
Not directly; APS is an acquired autoimmune condition, though there may be genetic predisposition to autoimmune disorders in families.
Is repeat testing needed?
Yes, repeat testing after 12 weeks is mandatory for diagnosis, and periodic monitoring may be needed during treatment.
This test looks for antibodies linked to abnormal blood clotting. It is advised if:
Tapadia Diagnostic Centre in Mumbai offers NABL-accredited Anticardiolipin Antibodies (IgG) test from a Blood sample(s). ACA, Antiphospholipids, Cardiolipin Antibodies is also prescribed for Blood clots, miscarriages, leg swelling, chest pain. Established in 1989, this doctor-led diagnostic centre ensures high accuracy. Home sample collection and walk-in facility available at our Mumbai center. Pay at the centre with no advance payment. Book online or visit us.
Anticardiolipin Antibodies (IgG) in Mumbai
Rated 4.6 on Google
From 6,477 patient reviews across our Hyderabad centres.
Every report, kept for you
Past reports stay in your account and can be downloaded again.
NABL accredited
Every result reviewed by a qualified pathologist before it reaches you.
Four decades of practice
A family-run diagnostic centre, trusted by doctors and households since 1989


Anticardiolipin Antibodies (IgG) in Vijayawada
Anticardiolipin Antibodies (IgG) in Visakhapatnam
Anticardiolipin Antibodies (IgG) in Ahmedabad
Anticardiolipin Antibodies (IgG) in Bengaluru
Anticardiolipin Antibodies (IgG) in Mumbai
Anticardiolipin Antibodies (IgG) in Secunderabad
Anticardiolipin Antibodies (IgG) in Karimnagar
Anticardiolipin Antibodies (IgG) in Hyderabad
Anticardiolipin Antibodies (IgG) in Warangal
Anticardiolipin Antibodies (IgG) in Chhatrapati Sambhajinagar (Aurangabad)
Master Health Checkup (Blood) in Mumbai
HIV 1 & 2 Antibodies, Serum-Elisa Method in Mumbai
Dengue IgG, IgM Antibodies + NS1 Antigen-Rapid, Serum in Mumbai
Lipoprotein A (Lp A), Serum in Mumbai
Erythrocyte Sedimentation Rate (ESR) in Mumbai
Thyroxine Total (T4), Serum in Mumbai
Triiodothyronine Total (T3), Serum in Mumbai
CA 19.9 (Pancreatic Cancer Marker), Serum in Mumbai
NIPT with Microdeletions in Mumbai
NIPT Basic in Mumbai
Complete Blood Picture (CBP) in Mumbai
Serum Phosphorus Test in Mumbai
TIBC in Mumbai
Urology Profile in Mumbai
Beta HCG Free, Serum (Pregnancy Test) in Mumbai
Viral Screening in Mumbai
AFP Test in Mumbai
Microalbuminuria test in Mumbai
Diabetes Testing (FBS + PLBS) in Mumbai
Antithrombin III in Mumbai
D-dimer test in Mumbai
Creatine Kinase (CK) Test in Mumbai
AST Test in Mumbai
Cardiac Markers in Mumbai
Pap Smear - LBC in Mumbai
DVT Profile in Mumbai
Bleeding Time and Clotting Time (BT & CT) in Mumbai
Estradiol Test in Mumbai
hs-CRP Test in Mumbai
Alkaline Phosphatase (ALP) Test in Mumbai
Fertility Profile in Mumbai
Albumin blood test in Mumbai
Troponin T in Mumbai
Infertility Profile Extended in Mumbai
Electrolyte Panel in Mumbai
Anticardiolipin Antibodies (IgG) in Mumbai
PSA Test in Mumbai
FSH Test in Mumbai
STD Panel in Mumbai
PCOS Profile in Mumbai
Serum Iron Test in Mumbai
Cardiac Profile-III in Mumbai
Plasma Fibrinogen Test in Mumbai
HBsAg Test in Mumbai
Cardiac Biomarker Test in Mumbai
Herpes Simplex Virus (HSV) Types 1 and 2 Antibody Test in Mumbai
Antenatal Profile in Mumbai
Activated Partial Thromboplastin Time in Mumbai
Lipid Panel in Mumbai
Fine Needle Aspiration Cytology in Mumbai
CRP test in Mumbai
Joint Pain / SLE / Collagen Profile-I in Mumbai
PAPP-A Test in Mumbai
Insulin Test in Mumbai
Triple Screen Test in Mumbai
Anti-HCV Test in Mumbai
Basic Metabolic Panel (BMP) in Mumbai
Very low-density lipoprotein (VLDL) test in Mumbai
Free Testosterone in Mumbai
Triglycerides Test in Mumbai
Quad Screen in Mumbai
Folic Acid in Mumbai
Urinalysis in Mumbai
CEA Test in Mumbai
Ferritin Test in Mumbai
Transferrin Saturation% in Mumbai
Protein C Antigen in Mumbai
Alpha Feto Protein (AFP) - Fluid in Mumbai
CPK (MB) Test in Mumbai
Lupus Anticoagulant Testing in Mumbai
Reticulocyte Count in Mumbai
Infertility Profile-Basic in Mumbai
Beta hCG Test in Mumbai
DIABETIC PROFILE in Mumbai
LH Test in Mumbai
Anti-Müllerian Hormone (AMH) Test in Mumbai
Bile Salts and Bile Pigments, Urine in Mumbai
HbA1c in Mumbai
Vitamin D (1,25-Dihydroxyvitamin D) in Mumbai
Liver Function Test (LFT) in Mumbai
Anemia Profile Basic in Mumbai
Rheumatoid Factor in Mumbai
Widal Test in Mumbai
Bilirubin blood test in Mumbai
Inhibin A, Tumor Marker, Serum in Mumbai
Thyroid Function Tests in Mumbai
eGFR in Mumbai
Menopause Profile in Mumbai
EXTENDED DIABETIC PROFILE in Mumbai
LDH Test in Mumbai
Total Cholesterol Test in Mumbai
Random Blood Sugar Test in Mumbai
Total Protein Test in Mumbai
RPR test in Mumbai
Anti-dsDNA Test in Mumbai
HDL Cholesterol in Mumbai
Blood Type Test in Mumbai
ASO Titre in Mumbai
Blood Urea(Serum) Test in Mumbai
Postprandial Blood Sugar Test in Mumbai
Back Pain Profile in Mumbai
ANA test in Mumbai
Serum Creatinine Test in Mumbai
PT/INR Test in Mumbai
Fasting Blood Sugar Test in Mumbai
Extended Anemia Profile III Executive in Mumbai
Kidney Function Test (Renal Profile) in Mumbai
Serum Magnesium Test in Mumbai
Well-woman exam in Mumbai
LDL cholesterol test in Mumbai
Prolactin Test in Mumbai
Malaria Blood Smear in Mumbai
Liver Function Test (+GGT) in Mumbai
TPHA Test in Mumbai
Hepatitis B Surface Antigen (HBsAg) Test in Mumbai
Antenatal Profile 2 in Mumbai
TSH Test in Mumbai
Cardiac Catheterization in Mumbai
Cardiolipin Antibody (IgM) in Mumbai
Master Health Checkup (BL+RADIO) in Mumbai
Calcium Profile in Mumbai
Coagulation Profile in Mumbai
Uric Acid Test in Mumbai
Vitamin D (25 - Hydroxy Vitamin D, Serum) in Mumbai
Globulin Test in Mumbai
Fever Profile Test in Mumbai
Connective Tissue Disease Profile in Mumbai
Calcium Blood Test in Mumbai
IHC in Mumbai
Estriol Unconjugated (E3) Test in Mumbai
Blood Typing in Mumbai
Vitamin B12 Test in Mumbai
Serum Cortisol in Mumbai
Double Marker Test in Mumbai
Pap Smear, Conventional in Mumbai
Protein S Activity in Mumbai
Non-Invasive Prenatal Testing (NIPT) in Mumbai
whole exome sequencing in Mumbai
Newborn Screening (NBS) in Mumbai
Apolipoprotein A1 (Apo A1), Serum in Mumbai
Apolipoprotein B (Apo B), Serum in Mumbai
Renal Function Test (RFT) in Mumbai