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Immunoglobulin G (IgG), Subclasses Blood Panel in Ashburn, VA

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Each subclass of IgG has distinct properties that allow them to combat different types of infections.

What is this test?

This test measures the total level of immunoglobulin G (IgG) and the four main subclasses of IgG in a blood sample. Immunoglobulins are antibodies produced by the body's immune system to target and eliminate foreign objects such as viruses and bacteria. Immunoglobulin G is the most abundant type of antibody in the blood. There are four subclasses of IgG: IgG1, IgG2, IgG3, and IgG4. Each subclass of IgG has distinct properties that allow them to combat different types of infections. Measuring IgG subclasses is typically done to help determine if someone has any IgG deficiency. Immunodeficiency can make people more susceptible to certain types of diseases or infections. An IgG subclass test can provide more information than a regular total IgG blood test. People with IgG subclass deficiency may suffer from chronic infections or have difficulty fighting off certain ones even when their total IgG levels appear normal.

+$15 service fee

Price does not include the Physician Service Fee ($6) and the Lab Collection Fee ($9). These non-refundable fees cover the ordering and oversight of lab tests and follow-up services when appropriate.

Next availability

Provided by Quest Diagnostics

Quest test codes:

How does it work?

  • 1. Select a test

    Choose from a wide range of panels and tests

  • 2. Pay online

    Pay online with a credit or debit card — no insurance needed

  • 3. Go to the lab

    Visit the lab of your choice

  • 4. Get fast results online

    We will email you when results are ready, in 1–3 business days

Lab tests FAQs

No. At Tripment Health, we focus on providing transparent healthcare services to uninsured or under-insured individuals. We’ve negotiated prices directly with lab test facilities to make diagnostic lab panels available to individuals who would rather pay directly than go through a private or government-sponsored insurance carrier.

Tripment Health offers a Superbill receipt once services have been rendered and paid for. These receipts can be submitted to your insurance company. Please note that Tripment Health is not able to submit insurance claims on your behalf. Please contact your insurance company directly to find out what information they will need and what they cover.

You will receive a payment confirmation email, then an additional email confirming your appointment details (type of test, time and location of appointment, and QR code). You will need to present your QR code to the testing facility in order to check in.

Once your test is complete, you will receive your results within 1-3 business days.

With a blood panel, you can establish your body’s baseline values for basic health measurements like cholesterol (total, triglycerides, HDL, LDL and total cholesterol/HDL ratio), glucose and hemoglobin A1c. Additionally, depending on the blood panel you choose, you will receive data on performance measurements such as Vitamin D, Vitamin B12, Magnesium, Thyroid Stimulating Hormone, and/or Testosterone.


Your results are more than just numbers. Your results come with a personalized recommendation from one of our physicians.

No. One of our physicians will order the panels for you.

You must be 18 or over to be able to get tested.

Currently we have local patient service centers available in all states, except in NY, NJ, TX & RI.