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ANCA (Anti-Neutrophil Cytoplasmic Antibodies) Extended Profile IgG Test

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ANCA (Anti-Neutrophil Cytoplasmic Antibodies) Extended Profile IgG Test

Short Name: ANCA Extended Profile IgG

Also known as: ANCA Extended Panel IgG, ANCA IgG Extended Profile, Anti-Neutrophil Cytoplasmic Antibodies Extended IgG Panel, ANCA Vasculitis Extended Panel

ANCA (Anti-Neutrophil Cytoplasmic Antibodies) Extended Profile IgG Test test available at DNA Labs India for ₹9,500. Uses Enzyme Immunoassay (EIA) on Serum samples. Results in Same day report delivery for samples received by 11 AM on Wednesday or Friday. Free home collection in 300+ cities across India.

RheumatologistAdults🏠 Home Collection

Overview

The ANCA Extended Profile IgG Test is performed to detect and identify specific anti-neutrophil cytoplasmic antibodies in the blood. It serves as a critical diagnostic tool for ANCA-associated vasculitis and helps clinicians differentiate between various subtypes of the disease. The test identifies antibodies against Proteinase 3 (PR3), Myeloperoxidase (MPO), Lactoferrin, Elastase, Cathepsin G, and BPI, each of which is associated with distinct clinical presentations. This information guides treatment decisions, helps monitor disease activity, and supports early intervention to prevent organ damage in affected patients.

Test Code
123
CPT Code
83516
ICD Code
M31.3, M31.7, M31.5
Price
₹9,500
Sample Type
Serum
Result Time
Same day report delivery for samples received by 11 AM on Wednesday or Friday
Fasting Required
No
Method
Enzyme Immunoassay (EIA)
Step 1

Sample Collection

No fasting is required. Inform your doctor about all medications, supplements, and herbal remedies you are currently taking, as certain drugs may influence test results.

Method: Venipuncture

Step 2

Laboratory Analysis

A trained phlebotomist will collect approximately 2 mL of blood from a vein in your arm using standard venipuncture technique. The procedure typically takes less than 5 minutes.

Step 3

Report Delivery

Apply gentle pressure with cotton or gauze over the puncture site for a few minutes. A small bruise may develop, which is normal and resolves on its own. You can resume normal activities immediately.

Timeline: Same day report delivery for samples received by 11 AM on Wednesday or Friday

Patient Instructions

1
Before the Test:No special preparation such as fasting is required. Bring your doctor's prescription and inform the lab about any medications or ongoing treatments that may affect test results.
2
During the Test:A small blood sample (approximately 2 mL) will be drawn from a vein in your arm. The process is quick and involves minimal discomfort. The sample is collected in a serum separator tube (SST).
3
After the Test:After sample collection, slight bruising or soreness at the puncture site may occur and typically resolves within a day. You may resume all normal activities. Reports will be available on the same day for samples received by 11 AM on Wednesday or Friday.

About This Test

Who Should Get This Test

The ANCA Extended Profile IgG Test is performed to detect and identify specific anti-neutrophil cytoplasmic antibodies in the blood. It serves as a critical diagnostic tool for ANCA-associated vasculitis and helps clinicians differentiate between various subtypes of the disease. The test identifies antibodies against Proteinase 3 (PR3), Myeloperoxidase (MPO), Lactoferrin, Elastase, Cathepsin G, and BPI, each of which is associated with distinct clinical presentations. This information guides treatment decisions, helps monitor disease activity, and supports early intervention to prevent organ damage in affected patients.

How to Prepare

  • No fasting required before sample collection
  • Inform the phlebotomist about any blood-thinning medications
  • Stay well hydrated before sample collection
  • Wear short-sleeved or loose-fitting clothing for easy access to the arm
  • Carry a valid doctor's prescription or test requisition form

Doctor's Notes

"The ANCA Extended Profile IgG test is invaluable when evaluating patients with suspected small-vessel vasculitis. By identifying specific antigen targets—particularly PR3 and MPO—this extended panel helps distinguish between Granulomatosis with Polyangiitis (GPA), Microscopic Polyangiitis (MPA), and Eosinophilic Granulomatosis with Polyangiitis (EGPA). I recommend this test for patients presenting with unexplained renal impairment, pulmonary haemorrhage, skin vasculitic lesions, or multi-system inflammatory symptoms. Early and accurate detection through this profile significantly improves clinical outcomes by enabling timely initiation of immunosuppressive therapy and preventing irreversible organ damage."

Test Parameters & Specifications

Sample TypeSerum
Sample Volume2 mL (1 mL min.)
ContainerSST (Serum Separator Tube)
Collection MethodVenipuncture

Sample Stability

Room Temperature: 24 hours
Refrigerated (2-8°C): 2 weeks
Frozen (-20°C): 12 weeks
Sample Rejection Criteria:
  • Hemolyzed or grossly lipemic serum sample
  • Insufficient sample volume (less than 1 mL)
  • Sample collected in incorrect tube type
  • Unlabeled or mislabeled sample
  • Sample stored beyond stability limits

Understanding Your Results

The ANCA Extended Profile IgG test results should always be interpreted by a qualified rheumatologist or immunologist in the context of the patient's clinical presentation, medical history, imaging studies, and additional laboratory findings. A positive result for any specific antibody helps narrow down the diagnosis and differentiate between subtypes of ANCA-associated vasculitis.
📊

Strongly associated with Granulomatosis with Polyangiitis (GPA), formerly known as Wegener's granulomatosis. This corresponds to the cytoplasmic ANCA (c-ANCA) pattern on immunofluorescence. Clinical features may include upper and lower respiratory tract involvement and glomerulonephritis.

📊

Associated with Microscopic Polyangiitis (MPA) and Eosinophilic Granulomatosis with Polyangiitis (EGPA). This corresponds to the perinuclear ANCA (p-ANCA) pattern on immunofluorescence. Clinical features may include rapidly progressive glomerulonephritis and pulmonary capillaritis.

📊

May be seen in drug-induced vasculitis, inflammatory bowel disease, autoimmune hepatitis, cystic fibrosis, and other autoimmune conditions. These atypical ANCA antibodies require careful clinical correlation and are not specific to primary vasculitis.

📊

ANCA-associated vasculitis is less likely but cannot be entirely excluded. A small percentage of patients with GPA, MPA, or EGPA may be ANCA-negative. Clinical suspicion should prompt further investigation including imaging and biopsy if indicated.

📊

The presence of multiple ANCA antibodies may indicate overlapping autoimmune conditions or drug-induced ANCA positivity. Clinical correlation and additional investigations are essential for accurate diagnosis.

⚠️ When to Consult a Doctor:

Consult a rheumatologist or immunologist if your ANCA Extended Profile IgG test results are positive or if you experience persistent unexplained fatigue, fever, weight loss, joint pain, breathlessness, blood in urine, skin rashes (purpura), or recurrent sinus problems. Early consultation is critical for timely diagnosis and management of ANCA-associated vasculitis to prevent irreversible organ damage.

Limitations

  • Results cannot distinguish between active disease and remission on their own
  • Must be interpreted alongside clinical findings, imaging studies, and tissue biopsy when indicated
  • A subset of patients with ANCA-associated vasculitis may be seronegative
  • ANCA positivity can occur in non-vasculitic conditions (e.g., drug-induced, inflammatory bowel disease)
  • The test measures IgG antibodies only; IgA and IgM ANCA are not assessed in this profile

Risks & Considerations

  • Minor bruising or swelling at the needle insertion site
  • Brief pain or discomfort during venipuncture
  • Rarely, slight dizziness or lightheadedness
  • Extremely rare risk of infection at the puncture site
  • Very rarely, excessive bleeding in individuals with bleeding disorders

Interfering Factors

  • Certain medications including propylthiouracil, hydralazine, minocycline, and levamisole-adulterated cocaine may induce ANCA positivity
  • Recent acute infections may transiently affect antibody levels
  • Concurrent autoimmune conditions such as rheumatoid arthritis or systemic lupus erythematosus
  • Hemolyzed, lipemic, or icteric samples may interfere with EIA results
  • Immunosuppressive therapy may reduce antibody titres and affect sensitivity

Compare With Similar Tests

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Frequently Asked Questions

What is the ANCA Extended Profile IgG Test?
The ANCA Extended Profile IgG Test is a specialized blood test that detects IgG autoantibodies directed against six neutrophil proteins: Proteinase 3 (PR3), Myeloperoxidase (MPO), Lactoferrin, Elastase, Cathepsin G, and BPI. It helps diagnose ANCA-associated vasculitis, a group of autoimmune diseases that cause blood vessel inflammation and can damage multiple organs.
Why is the ANCA Extended Profile IgG Test recommended by doctors?
Doctors recommend this test when a patient presents with symptoms suggestive of ANCA-associated vasculitis, such as unexplained kidney dysfunction, pulmonary haemorrhage, skin vasculitic lesions, chronic sinusitis, or multi-system inflammatory symptoms. It helps confirm the diagnosis and identify the specific type of vasculitis for appropriate treatment planning.
What sample is required for this test?
The test requires 2 mL (minimum 1 mL) of serum collected from a serum separator tube (SST) via standard venipuncture. The sample should be shipped refrigerated or frozen to the laboratory.
Is fasting required before the ANCA Extended Profile IgG Test?
No, fasting is not required for this test. You can eat and drink normally before sample collection. However, inform your doctor about all medications you are currently taking.
What does a positive ANCA Extended Profile IgG result mean?
A positive result indicates the presence of one or more specific ANCA antibodies in your blood. Anti-PR3 positivity is associated with Granulomatosis with Polyangiitis (GPA), while Anti-MPO positivity is linked to Microscopic Polyangiitis (MPA) and EGPA. Positive results for other antigens may indicate drug-induced vasculitis or other autoimmune conditions. Your doctor will correlate the results with your clinical symptoms and other investigations.
What are the normal reference ranges for this test?
For all six parameters in this extended profile, a negative result is considered normal, defined as antibody levels below 20 RU/mL. Results at or above 20 RU/mL are considered positive and require clinical correlation.
How long does it take to get the results?
Results are typically available on the same day for samples received by 11 AM on Wednesday or Friday. You will receive your report via the online portal, email, or WhatsApp.
What is the cost of the ANCA Extended Profile IgG Test in India?
The cost of the ANCA Extended Profile IgG Test at DNA Labs India is INR 9500. This includes free home sample collection across India. Prices may vary slightly based on your location and any applicable promotional offers.
Is home sample collection available for this test?
Yes, DNA Labs India offers free home sample collection for the ANCA Extended Profile IgG Test. You can book your test online, and a trained phlebotomist will visit your home at your preferred time to collect the blood sample. This service is available across major cities in India.
What is the difference between ANCA Extended Profile and ANCA Basic Profile?
The ANCA Basic Profile typically tests for only two antibodies—Anti-PR3 and Anti-MPO. The Extended Profile includes these two plus four additional antibodies: Anti-Lactoferrin, Anti-Elastase, Anti-Cathepsin G, and Anti-BPI. The extended panel provides a more comprehensive assessment and is especially useful when basic screening is negative but clinical suspicion for vasculitis remains high.
Can medications affect the ANCA Extended Profile IgG Test results?
Yes, certain medications can induce ANCA positivity. These include propylthiouracil (used for thyroid disorders), hydralazine (used for hypertension), minocycline (an antibiotic), and levamisole (often found as an adulterant in cocaine). Always inform your doctor about all medications before testing so results can be accurately interpreted.
Is the ANCA Extended Profile IgG Test covered by health insurance in India?
Insurance coverage for this test varies depending on your insurance provider and policy terms. Government schemes like PMJAY, CGHS, and ECHS may cover the test when prescribed by a specialist and done at an empanelled facility. Private insurance coverage depends on individual policy terms. It is recommended to verify coverage with your insurance provider before testing.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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