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Immunoglobulin G, IgG - Serum

Immunoglobulin G, IgG - Serum

IgG, or Immunoglobulin G, is the most common type of antibody found in the bloodstream. It plays a pivotal role in fighting bacterial and viral infections. The Immunoglobulin G, IgG - Serum test is used to measure the level of IgG in your blood. It can provide valuable insights into the state of your immune system and help diagnose conditions such as immunodeficiency disorders, autoimmune diseases, and infections

Antibodies, also known as immunoglobulins, are proteins produced by the immune system to combat harmful substances like viruses, bacteria, and toxins. The IgG class of antibodies constitutes about 70-80% of all the antibodies in the body, making it a key component of the body's defense mechanism.

The Immunoglobulin G, IgG - Serum test is typically ordered when a person presents with recurrent infections or symptoms suggesting an immunodeficiency disorder. It is also performed when a doctor suspects an autoimmune disease, a condition where the immune system mistakenly attacks the body's own cells.


  • Test NameImmunoglobulin G, IgG - Serum
  • Sample TypeBlood
  • Preparations RequiredThere are no specific preparations required for this test. Regular eating, drinking, and medication schedules can be maintained unless advised otherwise by your healthcare provider
  • Report Time4 hours

Why is the Immunoglobulin G, IgG - Serum test important?

The Immunoglobulin G, IgG - Serum test is crucial for evaluating the body's immune response. It can help detect abnormalities in the immune system and guide treatment for various conditions, including recurrent infections, immunodeficiency disorders, and autoimmune diseases.

Do I need to fast for the Immunoglobulin G, IgG - Serum test?

No, fasting is not required for the Immunoglobulin G, IgG - Serum test. You can continue your usual diet and medications unless instructed otherwise by your healthcare provider.

Home Sample Collection Process

1
Book your convenient slot
Book your convenient slot
2
Sample Collection by Phlebotomist
Sample Collection by Phlebotomist
3
Reporting of the sample at lab
Reporting of the sample at lab
4
Download Reports
Download Reports
Frequently Asked Questions

This test measures the level of Immunoglobulin G (IgG) in the serum, the liquid portion of your blood. IgG is an antibody that plays a significant role in defending your body against bacterial and viral infections.

The frequency of this test depends on your health condition and the recommendation of your healthcare provider. If you have a chronic condition affecting the immune system, regular monitoring may be required.

The normal range for IgG levels in blood serum is typically between 700 to 1600 milligrams per deciliter (mg/dL). However, these ranges may vary between laboratories, and your doctor will interpret your results based on your specific condition.

No special precautions are needed for this test. However, it's always a good idea to stay hydrated and avoid any strenuous activities just before the test.

Several factors can influence IgG levels. Non-modifiable factors include age, genetics, and sex. Modifiable factors include lifestyle habits like diet, exercise, smoking, and alcohol consumption. Certain diseases and conditions, like chronic infections, autoimmune diseases, and immunodeficiency disorders, can also affect IgG levels.

You should consult with an immunologist, infectious disease specialist, or a general physician if your Immunoglobulin G, IgG - Serum test values are abnormal. They can interpret your results and guide you on the next steps based on your overall health condition and symptoms.

The Immunoglobulin G, IgG - Serum test itself does not diagnose specific diseases. However, it can provide important information about the state of your immune system and assist in diagnosing conditions like immunodeficiency disorders and autoimmune diseases.

Yes, this test is safe. It involves a simple blood draw, which is a routine procedure with minimal risks. Understanding the level of Immunoglobulin G, IgG in your blood is crucial in evaluating the condition of your immune system. This knowledge can be a significant aid in diagnosing various conditions and monitoring the body's response to treatments. Regular consultations with your healthcare provider are essential to understand these results better and to receive appropriate medical advice.

Yes, certain medications can influence the results of the Immunoglobulin G, IgG - Serum test. These may include corticosteroids, immunosuppressant drugs, or medications used to treat autoimmune diseases. Always inform your healthcare provider about any medications, supplements, or treatments you are taking.

Stress doesn't directly affect the levels of Immunoglobulin G, IgG in your serum, but it can have a broader impact on your immune system, potentially influencing your test results.

Not typically. The Immunoglobulin G, IgG - Serum test is usually ordered when a person has signs and symptoms that suggest an immune system disorder or when an individual experiences recurrent infections.

It's important to inform your healthcare provider of your complete health history, including any chronic conditions, recent illnesses, allergies, and the medications and supplements you are currently taking.

If your Immunoglobulin G, IgG - Serum test results are not within the normal range, it's important to discuss this with your healthcare provider. They can interpret the results in the context of your overall health and symptoms, and provide appropriate advice for further testing or treatments.

The Immunoglobulin G, IgG - Serum test is a vital tool in assessing the health and functionality of your immune system. While the test itself is straightforward, interpreting the results should be done by a healthcare professional, considering your overall health and the context of other diagnostic information. Don't hesitate to ask questions or raise concerns with your healthcare provider, as understanding your health is key to managing and improving it

Immunoglobulin G, IgG - Serum
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