Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...

Eun Lee, MD Key Takeaways A T4 test checks thyroid function by measuring thyroxine levels.Symptoms of high T4 include a fast ...

As a consequence of the widespread adoption of preventive health checks and accessible laboratory tests, thyroid function levels have become a common part of a physician-patient interaction. However, ...

The scenario is fairly common: you are in your medical provider’s office for a checkup and also happen to be getting lab work done. You report that you have no symptoms of feeling cold or fatigue, ...

Thyroxine (T4) levels differ from person to person but usually exist within a consistent range. Abnormal T4 levels can lead to various symptoms and complications, including mental health and digestive ...

A thyroid scan is a specialized imaging procedure for examining your thyroid, the gland that controls your metabolism. It’s located in the front part of your neck. Typically, the scan works with ...

RADIOIODINE (I131) has been used extensively in the diagnosis of thyroid disorders, and many tests have been developed. 1–3 Most of these tests are based on two aspects of thyroid activity: the ...

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