Understanding the T4 Normal Range: What Your Thyroid Test Results Mean
The thyroid is a small, butterfly-shaped gland located at the base of your neck, but it plays a massive role in regulating how your body uses energy. One of the primary hormones it produces is thyroxine, commonly known as T4. If you’ve recently had routine blood work or experienced symptoms like fatigue or unexplained weight changes, your doctor may have ordered a thyroid panel that includes a T4 test.
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