# Immunoglobulin G, Quantitative

> This test measures the level of Immunoglobulin G (IgG), the most common type of antibody your immune system creates to fight bacteria and viruses. It helps show whether your body has enough protection against illness, which is useful if you suffer from frequent or severe infections.

- Labcorp code: 001776
- Category: [Immune Regulation](https://picardo.health/labs/tests/immune-regulation.md)
- Sample: blood
- Labcorp turnaround: within 1 day
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=001776&ref=assistant

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their 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.