# Immunoglobulins, Quantitative, IgA, IgG, IgM

> This test measures the levels of three specific types of antibodies in your blood, which are proteins the immune system uses to fight bacteria and viruses. It helps show how well your immune system is functioning, particularly if you experience frequent infections or unexplained inflammation. Doctors use these results to help rule out immune deficiencies and certain blood disorders. However, this test alone cannot identify the specific germ causing an infection or diagnose a specific autoimmune disease without further testing.

- Labcorp code: 001768
- Category: [Immune Regulation](https://app.picardo.health/labs/tests/immune-regulation.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=001768&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.