# Interleukin-2, Serum

> This test measures the level of Interleukin-2, a protein that acts as a signal to help your white blood cells grow and fight infection. It helps show how active your immune system is, which is useful for evaluating immune disorders or monitoring the body's response to certain treatments. These results can help doctors determine if the immune system is overreacting or suppressed, providing insight into complex inflammatory conditions. However, this test cannot diagnose a specific disease or pinpoint the exact cause of an immune imbalance on its own.

- Labcorp code: 140912
- 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=140912&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.