Free T3

Also known:


systematic name:



What sample is required?

The determination is made from a venous blood sample from the arm.

Is some kind of prior preparation necessary?

For this test you do not need any special preparation.

Why do the analysis?

To evaluate the functioning of the thyroid gland; to diagnose a thyroid disease such as hyperthyroidism and determine its cause; to monitor the effectiveness of treatment of a thyroid disease.

When to do the analysis?

When a person has abnormal TSH results, especially if the T4 is normal, or has signs and symptoms of hyperthyroidism.

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