Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test
Immunoglobulin G (IgG) Blood Test

Over 90k Biomarkers Tested

Immunoglobulin G (IgG) Blood Test

$35.00 AUD

Experiencing recurrent infections, want comprehensive immune system assessment, or need evaluation of your long-term immunity and immune strength?

The Immunoglobulin G (IgG) test measures the most common type of antibody in the blood. IgG plays a key role in defending against bacterial and viral infections and provides long-term immunity after exposure or vaccination. Abnormal IgG levels can indicate immune deficiencies, chronic infections, autoimmune conditions, or certain allergies. This test is often used to assess immune system health, investigate recurrent infections, and monitor immune-related disorders.

Collection Location
Specimen Type

You will be emailed a referral to take to your local collection centre. If you ever have any questions, we're here to help.

4k+ Collection Locations

Personalised Reports

Early Detection

Private health tests

How It Works

Getting your health measured shouldn't be hard! We're here to help you every step of the way.

1
Order a test

Order a test

Order the private test that suits you and your goals. After ordering, you will receive your referral by email.

2
Collect the sample

Collect the sample

Attend one of our 4000+ partner collection centres throughout Australia. Search locations.

3
Receive your results

Receive your results

View all your lab results in your secure health dashboard. Easy!

Testimonials

What Our Customers Say

4.9
Average Rating
2,500+ Customers Tested
90,000+ Individual Biomarkers
A
Adam O. ACT

Simple health checks in my control

I didn't know that private blood tests were an option. Tried this platform as the packages suited what I wanted for a good price. Easy to follow instructions, and super quick results. Platform provides more information than my gp's ever have on the tests and what the results meant. Would like more clinics to be able to test at (specifically Capital Pathology) but there is a decent network. Will continue to use.

The Performance Check
C
Christopher N. NSW

Quick access to blood tests

BLOODY GOOD is a very efficient route to access blood testing for a visitor outside the Australian health system. It is quick with the necessary referral and documentation, and quick with results. Thank you

Full Blood Count (FBC) Blood Test
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Rebecca Y NSW

Great Service!

Fantastic service to deal with, I love the extra explanations for all the tests.

Glycated Haemoglobin (HbA1c)
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Olga B. New South Wales

Convenient

Getting a referral was easy. Laverty pathology accepted it. Bloody Good offers an affordable and convenient way to check essential blood markers.

hs-CRP Blood Test
M
Marita S. Queensland

Bloody good test

Very comprehensive tests that have given me a good picture of my overall health.

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Lukas C. NSW

Quick, easy, hassle free

Excellent service, quick, easy, hassle free, can recommend.

Testosterone Free/Total + SHBG
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ABDUL S. QLD

Amazingly quick and efficient

Very easy to use. Love that it stores your blood tests.

The Performance Test
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Andre D. QLD

5 Stars

Efficient and easy to use

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Wayne NSW

5 Stars

Extremely helpful company

Calcium Blood Test
"I'm a little biased as I work here! However, I love that The Bloody Good Test tracks my health over time. After turning 40, I wanted to make sure I wasn't going to drop dead from something basic I should have known about earlier. Measuring all my core biomarkers each year gives me peace of mind my health is on the right track"
Cameron Smith Head of Ecommerce, Brisbane

Overview

Think of the Immunoglobulin G (IgG) test as checking your immune system's memory bank. IgG antibodies are like your body's security guards that remember every infection or vaccination you've encountered, staying on patrol in your bloodstream to provide long-lasting protection. These antibodies are your most abundant defenders, making up the backbone of your long-term immunity and even protecting newborns by crossing from mother to baby during pregnancy.

This test reveals whether your immune system has the right amount of these protective antibodies to keep you healthy. Low IgG levels might explain why you're getting sick frequently, as it could signal that your immune system isn't producing enough defenders to fight off infections effectively. On the flip side, unusually high levels might indicate your body is working overtime to battle a chronic infection or dealing with an autoimmune condition where your immune system is overactive. Understanding your IgG levels helps determine if recurrent illnesses are due to immune deficiency and whether you might benefit from treatments to boost your body's natural defenses.

Symptoms

Essential for individuals with recurrent infections, suspected immune deficiency, chronic illness affecting immunity, or anyone needing comprehensive immune function evaluation.

Questions

  • Low IgG typically indicates immune deficiency, which can be primary (genetic) or secondary (due to medications, illness, or other factors), potentially increasing susceptibility to infections and requiring further evaluation.
  • Elevated IgG may indicate chronic infection, autoimmune disease, liver disease, or certain blood disorders, requiring clinical correlation and additional testing for proper diagnosis.
  • IgG provides long-term immunity and is the most abundant antibody, while IgM indicates recent infection and IgA protects mucosal surfaces - each serves different immune functions.
  • Yes, IgG levels can change due to infections, vaccinations, medications, aging, or underlying health conditions, which is why monitoring may be needed in certain situations.
  • IgG deficiency is a condition where IgG levels are below normal, potentially causing recurrent infections and may require treatment with immunoglobulin replacement therapy or other immune support measures.
  • Treatment may include immunoglobulin replacement therapy, prophylactic antibiotics, lifestyle modifications to reduce infection risk, and management of underlying conditions affecting immune function.

Dr. Vu Tran
Bloody Good’s Chief Medical Officer

Biomarker Tested

How to prepare

No special preparation required. Inform healthcare provider of recent infections, vaccinations, or medications that might affect immune function, as these can influence IgG levels and interpretation.

After the test

Address abnormal IgG levels through comprehensive immune evaluation, treatment of underlying conditions, immune support measures, or immunoglobulin replacement therapy if deficiency is confirmed. Work with immunologists for specialized care.

Your test results will be available in your private dashboard. If there are any urgent issues, we'll let you know so you can follow up with your health professional.

Understanding results

Results show IgG levels compared to age-appropriate normal ranges. Low levels may indicate immune deficiency, while elevated levels may suggest chronic infection, inflammation, or autoimmune conditions.

Frequently Asked Questions

Most collection centres accept walk-ins. Some may require a booking - check details when you click on your chosen location.

If your test needs fasting, we’ll include that in your instructions after you order. Fasting usually means no food for 8–12 hours, but water is fine.

Just your pathology referral form (we email it to you)

Of course. Just maybe don’t bring the friend who faints at the sight of blood.

They’re the highly trained professionals who take your blood sample - with a steady hand and a sharp needle. They love blood, but don’t worry… they’re not vampires. Just legends who make blood tests quick, clean, and (almost) painless.

Some of our tests include Urine, Stool, Saliva and more. Each test will have a clear description on what sample you will need to give and instructions on how.