# Thyroid Profile

> This test measures the level of thyroxine (T4) in your blood and calculates how much of this hormone is active and available for your body to use. It helps show whether your thyroid gland is working properly to control your metabolism, which affects your energy and weight. This profile helps rule out conditions where the thyroid is either overactive or underactive. However, it does not identify the specific underlying cause of the thyroid issue, such as an autoimmune disease, without additional testing.

- Labcorp code: 000455
- Category: [Thyroid](https://app.picardo.health/labs/tests/thyroid.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=000455&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.