# Immunoglobulin E, Total

> This test measures the total amount of Immunoglobulin E (IgE), an antibody your immune system produces. It helps show if your body is reacting to an allergen, which is useful for evaluating conditions like asthma, hay fever, or eczema. Doctors use this information to see if your symptoms are likely caused by an allergic process rather than an infection. However, this test only measures the overall level of IgE and cannot identify specific triggers or diagnose a specific allergy by itself.

- Labcorp code: 002170
- Category: [Allergies & Sensitivities](https://app.picardo.health/labs/tests/allergies-sensitivities.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=002170&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.