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IgG Subclass 4 (IgG4)

IgG Subclass 4 (IgG4) near me in Gurgaon

Also referred as
IgG4– IgG Subclass 4
For men & women
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The IgG Subclass 4 (IgG4) test measures the level of immunoglobulin G subclass 4 (IgG4) antibodies in the blood, a specific subtype of IgG involved in immune regulation. This test is primarily used to support the clinical evaluation of IgG4-related disease, a chronic immune-mediated condition characterized by inflammation, fibrosis, and involvement of multiple organs. Elevated IgG4 levels are commonly associated with conditions such as autoimmune pancreatitis and sclerosing cholangitis, and may also be observed in certain allergic or inflammatory conditions. The test is widely available with Tata 1mg labs in Gurgaon at an affordable price. 

 

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Understanding IgG Subclass 4 (IgG4)

IgG4 antibodies are the least abundant subclass of immunoglobulin G (IgG) in the blood, yet they play an important role in immune regulation. While IgG antibodies help the body respond to infections, abnormal IgG4 levels have been associated with certain immune-mediated conditions. One such condition is IgG4-related disease (IgG4-RD), a chronic disorder that can cause organ enlargement, inflammation, fibrosis, and, in some cases, tumor-like masses. Elevated IgG4 levels are also commonly seen in autoimmune conditions such as autoimmune pancreatitis and may be present in chronic inflammatory or allergic conditions, indicating prolonged immune system activity.

A doctor may recommend the IgG Subclass 4 (IgG4) test when there is unexplained organ enlargement, persistent inflammation, or clinical suspicion of IgG4-related disease based on symptoms and imaging findings. The test may also be advised to support the evaluation of immune-mediated or allergic conditions.

The IgG Subclass 4 (IgG4) test supports the clinical assessment of IgG4-related disease and helps differentiate it from conditions such as malignancies (e.g., lymphoma) and other autoimmune disorders (e.g., lupus). It may also be used as part of ongoing evaluation to monitor disease activity and treatment response, in conjunction with clinical findings and other diagnostic tests.

No special preparation is required for the IgG Subclass 4 (IgG4) test. You may eat and drink normally unless instructed otherwise by your doctor. Inform your doctor about all medications (such as antihistamines, oral steroids, or immunosuppressants) and supplements you are currently taking. Also, inform your doctor about any relevant medical history, including recent infections (such as flu or the common cold), pregnancy, or known immune-related disorders. These factors may influence test results and should be discussed with a healthcare professional for accurate interpretation of the IgG Subclass 4 (IgG4) test results.

Test result ranges are approximate and may differ slightly between labs depending on the methodology and laboratory guidelines. Do not self-medicate and always consult a doctor to understand the test results correctly.

Please note: This is an outsourced test. The sample for this test is collected by TATA 1MG and processed at a NABL accredited partnered lab.

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What does IgG Subclass 4 (IgG4) measure?

The IgG Subclass 4 (IgG4) test measures the level of immunoglobulin G subclass 4 (IgG4) antibodies in the blood. IgG4 is one of the four subclasses of IgG antibodies and plays a role in regulating immune responses. Unlike some other antibodies that strongly trigger inflammation, IgG4 is often involved in modulating immune activity during long-term or repeated immune stimulation.

Abnormal or elevated IgG4 levels have been associated with certain immune-mediated and inflammatory conditions, including IgG4-related disease. However, raised IgG4 levels are not specific to a single condition and must be interpreted along with clinical symptoms, imaging findings, and other laboratory tests. For this reason, IgG4 testing is used as a supportive test to aid diagnosis and monitor disease activity rather than as a standalone test.

FAQs related to IgG Subclass 4 (IgG4) in Gurgaon

The IgG Subclass 4 (IgG4) test measures the levels of immunoglobulin G subclass (IgG4) antibodies in the blood. It helps diagnose autoimmune pancreatitis, sclerosing cholangitis, allergy, and IgG4-related disease, which is a multi-system disorder characterized by fibrosis and inflammation in various organs.
The IgG Subclass 4 (IgG4) test measures IgG4 antibodies in the blood. It is used to support diagnosis of IgG4-related disease, differentiate it from other autoimmune or allergic conditions, and monitor disease activity or treatment response. This is not a general immunity test.
Fasting is not required for the IgG Subclass 4 (IgG4) test. Eat and drink as per your daily routine unless instructed otherwise. Inform the doctor of any medications, supplements, and medical history before taking this test, as all these factors may affect the test results.
The test is done by taking a blood sample from a vein in your arm. The sample is then analyzed in a lab to determine the levels of immunoglobulin IgG subclass 4 antibodies in the blood.
No, the IgG Subclass 4 (IgG4) test is generally safe with minimal risks. You may feel slight discomfort, bruising, or swelling at the blood draw site, which resolves on its own and is not bothersome.
Yes. In Gurgaon, you can schedule the IgG Subclass 4 (IgG4) test near you with Tata 1mg Labs. The test is easy to book, cost-effective, and available with a comprehensive report.
Yes, home sample collection for the IgG Subclass 4 (IgG4) test is readily available in Gurgaon. Tata 1mg Labs allows you to choose a date and time that suits your schedule for sample collection.
If you want to schedule the IgG Subclass 4 (IgG4) test with Tata 1mg Labs in Gurgaon, the procedure is fairly easy with convenient sample collection. Follow these steps to book a test: 1). Visit the Lab Tests section on the Tata 1mg website. 2). Add the test you want to the cart. 3). Pick a time and date slot according to your convenience; however, do consider the necessary prerequisites while scheduling a test. 4). You will receive a notification with all the details once the test is scheduled.
The IgG Subclass 4 (IgG4) test is available at Tata 1mg Labs in Gurgaon. You can book the test conveniently, and it is offered at a standard lab rate of Rs. 6299.
At Tata 1mg Labs, we understand the importance of timely results. We strive to provide fast turnaround times for test results, allowing you to get the information you need promptly. On average, we take 48 hours to provide the reports of the IgG Subclass 4 (IgG4) test in Gurgaon.
Content created by
Written by:
Dr. Lipika Khurana
PGDHHM, BDS
Reviewed by:
Dr. Swati Gupta (Anand)
MD Lab Medicine, MBBS
Want to know moreRead our editorial policy
Last Updated30th Jan 2026

IgG Subclass 4 (IgG4) test price for other cities

Price inNew DelhiRs. 6299
Price inMumbaiRs. 6479
Price inKolkataRs. 6299
Price inBangaloreRs. 6479
Price inPuneRs. 6479

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IgG Subclass 4 (IgG4)