Thyroid Function Panel Test – Normal Range

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The traditional range for thyroid test results (TSH) is typically around 0.45 to 4.5. This is an extremely wide range for what are considered normal thyroid levels, allowing for varying levels of ‘normal’ thyroid function.

Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid.

TFTs may be requested if a patient is thought to suffer from hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), or to monitor the effectiveness of either thyroid-suppression or hormone replacement therapy.

It is also requested routinely in conditions linked to thyroid disease, such as atrial fibrillation and anxiety disorder.

A TFT panel typically includes thyroid hormones such as thyroid-stimulating hormone (TSH, thyrotropin) and thyroxine (T4), and triiodothyronine (T3) depending on local laboratory policy.

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