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Overview
The T3 test, commonly referred to as the Triiodothyronine test, measures the level of the thyroid hormone T3 in the blood. T3 is crucial for regulating metabolism, energy production, and other bodily functions. The test is typically used to assess...
Risk assessment
Hypothyroidism, Hyperthyroidism, Hashimoto's thyroiditis, Thyroid cancer.
Ranges
The normal levels of T3 are mentioned in the table below. Thyroxine (T3) Results Total T3 0.97-1.80 ng/dL The T3 normal range in pregnancy Trimester Results Second trimester 1.7 - 4.3 nmol/L Third trimester 0.4 - 3.9 nmol/L The T3 normal range in ...
Test result interpretation
T3 test results show the level of the thyroid hormone triiodothyronine in the blood.
• Normal range: Typically, Total T3 is around 80-200 ng/dL, and Free T3 is about 2.3-4.2 pg/mL, though ranges can vary by lab.
• High T3 l...
Sample types
Frequently Asked Questions
Why do doctors not test T3?
Is there a blood test for T3?
What happens if the T3 level is high?
Does low T3 cause weight gain?
What is a bad T3 level?
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T3
Assessing bound Thyroid Hormone Levels for Comprehensive Metabolic Health Insight




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Description
Triiodothyronine, also known as T 3 , is a thyroid hormone. It affects almost every physiological process in the body, including growth and development, metabolism, body temperature, and heart rate. Production of T 3 and its prohormone thyroxine (T 4) is activated by thyroid-stimulating hormone (TSH), which is released from the anterior pituitary gland.
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