Total T3 Test

What is Total T3?

• Hormone: Triiodothyronine (T3) is one of the two main hormones produced by the thyroid gland.
• Function: T3 regulates metabolism, growth, and energy levels in the body.
• Measurement: Total T3 measures both the free (unbound) and protein-bound forms of T3 in the blood.

Why is the Total T3 Test Done?

1. Thyroid Function: Helps assess overall thyroid function, especially in conjunction with other thyroid tests.
2. Diagnosis: Used to diagnose hyperthyroidism (excessive thyroid hormone production) or monitor treatment effectiveness in thyroid disorders.
3. Symptoms: Assists in evaluating symptoms associated with thyroid dysfunction, such as weight changes, fatigue, and mood swings.

When Should You Get a Total T3 Test?

• Thyroid Symptoms: If you have symptoms of thyroid dysfunction, such as unexplained weight changes, fatigue, sensitivity to heat, or changes in heart rate.
• Thyroid Disorders: Individuals with known thyroid conditions or family history of thyroid disease.
• Monitoring: To monitor thyroid function during treatment for thyroid disorders.