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 Guwahati 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 Guwahati center. Pay at the centre with no advance payment. Book online or visit us.
Anticardiolipin Antibodies (IgG) in Guwahati
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 Guwahati
HIV 1 & 2 Antibodies, Serum-Elisa Method in Guwahati
Dengue IgG, IgM Antibodies + NS1 Antigen-Rapid, Serum in Guwahati
Lipoprotein A (Lp A), Serum in Guwahati
Erythrocyte Sedimentation Rate (ESR) in Guwahati
Thyroxine Total (T4), Serum in Guwahati
Triiodothyronine Total (T3), Serum in Guwahati
CA 19.9 (Pancreatic Cancer Marker), Serum in Guwahati
NIPT with Microdeletions in Guwahati
NIPT Basic in Guwahati
Complete Blood Picture (CBP) in Guwahati
Serum Phosphorus Test in Guwahati
TIBC in Guwahati
Urology Profile in Guwahati
Beta HCG Free, Serum (Pregnancy Test) in Guwahati
Viral Screening in Guwahati
AFP Test in Guwahati
Microalbuminuria test in Guwahati
Diabetes Testing (FBS + PLBS) in Guwahati
Antithrombin III in Guwahati
D-dimer test in Guwahati
Creatine Kinase (CK) Test in Guwahati
AST Test in Guwahati
Cardiac Markers in Guwahati
Pap Smear - LBC in Guwahati
DVT Profile in Guwahati
Bleeding Time and Clotting Time (BT & CT) in Guwahati
Estradiol Test in Guwahati
hs-CRP Test in Guwahati
Alkaline Phosphatase (ALP) Test in Guwahati
Fertility Profile in Guwahati
Albumin blood test in Guwahati
Troponin T in Guwahati
Infertility Profile Extended in Guwahati
Electrolyte Panel in Guwahati
Anticardiolipin Antibodies (IgG) in Guwahati
PSA Test in Guwahati
FSH Test in Guwahati
STD Panel in Guwahati
PCOS Profile in Guwahati
Serum Iron Test in Guwahati
Cardiac Profile-III in Guwahati
Plasma Fibrinogen Test in Guwahati
HBsAg Test in Guwahati
Cardiac Biomarker Test in Guwahati
Herpes Simplex Virus (HSV) Types 1 and 2 Antibody Test in Guwahati
Antenatal Profile in Guwahati
Activated Partial Thromboplastin Time in Guwahati
Lipid Panel in Guwahati
Fine Needle Aspiration Cytology in Guwahati
CRP test in Guwahati
Joint Pain / SLE / Collagen Profile-I in Guwahati
PAPP-A Test in Guwahati
Insulin Test in Guwahati
Triple Screen Test in Guwahati
Anti-HCV Test in Guwahati
Basic Metabolic Panel (BMP) in Guwahati
Very low-density lipoprotein (VLDL) test in Guwahati
Free Testosterone in Guwahati
Triglycerides Test in Guwahati
Quad Screen in Guwahati
Folic Acid in Guwahati
Urinalysis in Guwahati
CEA Test in Guwahati
Ferritin Test in Guwahati
Transferrin Saturation% in Guwahati
Protein C Antigen in Guwahati
Alpha Feto Protein (AFP) - Fluid in Guwahati
CPK (MB) Test in Guwahati
Lupus Anticoagulant Testing in Guwahati
Reticulocyte Count in Guwahati
Infertility Profile-Basic in Guwahati
Beta hCG Test in Guwahati
DIABETIC PROFILE in Guwahati
LH Test in Guwahati
Anti-Müllerian Hormone (AMH) Test in Guwahati
Bile Salts and Bile Pigments, Urine in Guwahati
HbA1c in Guwahati
Vitamin D (1,25-Dihydroxyvitamin D) in Guwahati
Liver Function Test (LFT) in Guwahati
Anemia Profile Basic in Guwahati
Rheumatoid Factor in Guwahati
Widal Test in Guwahati
Bilirubin blood test in Guwahati
Inhibin A, Tumor Marker, Serum in Guwahati
Thyroid Function Tests in Guwahati
eGFR in Guwahati
Menopause Profile in Guwahati
EXTENDED DIABETIC PROFILE in Guwahati
LDH Test in Guwahati
Total Cholesterol Test in Guwahati
Random Blood Sugar Test in Guwahati
Total Protein Test in Guwahati
RPR test in Guwahati
Anti-dsDNA Test in Guwahati
HDL Cholesterol in Guwahati
Blood Type Test in Guwahati
ASO Titre in Guwahati
Blood Urea(Serum) Test in Guwahati
Postprandial Blood Sugar Test in Guwahati
Back Pain Profile in Guwahati
ANA test in Guwahati
Serum Creatinine Test in Guwahati
PT/INR Test in Guwahati
Fasting Blood Sugar Test in Guwahati
Extended Anemia Profile III Executive in Guwahati
Kidney Function Test (Renal Profile) in Guwahati
Serum Magnesium Test in Guwahati
Well-woman exam in Guwahati
LDL cholesterol test in Guwahati
Prolactin Test in Guwahati
Malaria Blood Smear in Guwahati
Liver Function Test (+GGT) in Guwahati
TPHA Test in Guwahati
Hepatitis B Surface Antigen (HBsAg) Test in Guwahati
Antenatal Profile 2 in Guwahati
TSH Test in Guwahati
Cardiac Catheterization in Guwahati
Cardiolipin Antibody (IgM) in Guwahati
Master Health Checkup (BL+RADIO) in Guwahati
Calcium Profile in Guwahati
Coagulation Profile in Guwahati
Uric Acid Test in Guwahati
Vitamin D (25 - Hydroxy Vitamin D, Serum) in Guwahati
Globulin Test in Guwahati
Fever Profile Test in Guwahati
Connective Tissue Disease Profile in Guwahati
Calcium Blood Test in Guwahati
IHC in Guwahati
Estriol Unconjugated (E3) Test in Guwahati
Blood Typing in Guwahati
Vitamin B12 Test in Guwahati
Serum Cortisol in Guwahati
Double Marker Test in Guwahati
Pap Smear, Conventional in Guwahati
Protein S Activity in Guwahati
Non-Invasive Prenatal Testing (NIPT) in Guwahati
whole exome sequencing in Guwahati
Newborn Screening (NBS) in Guwahati
Apolipoprotein A1 (Apo A1), Serum in Guwahati
Apolipoprotein B (Apo B), Serum in Guwahati
Renal Function Test (RFT) in Guwahati