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This thyroid profile measures three important thyroid hormones — Free T3 (FT3), Free T4 (FT4), and Thyroid Stimulating Hormone (TSH). These parameters help evaluate overall thyroid gland function and detect thyroid disorders.
Doctors recommend this test to diagnose or monitor thyroid conditions like hypothyroidism and hyperthyroidism. It is also useful if you have symptoms such as fatigue, sudden weight changes, hair loss, mood swings, irregular periods, or difficulty tolerating heat or cold.
No, fasting is not required before this test. But you should inform your doctor about any thyroid medications, supplements, or vitamins you are taking, as some medicines may affect the results.
A standard thyroid panel measures total T3 and T4 levels, including both bound and unbound hormones. A Free Thyroid Profile specifically measures free (active) hormone levels, which provides a more accurate assessment of thyroid function.
Yes, pregnancy can significantly affect thyroid hormone levels. Regular thyroid monitoring during pregnancy is important because abnormal thyroid function may impact both the mother and the developing baby.
Reports are available within 4–5 hours, although the exact reporting time may vary depending on additional tests booked with the profile.
If your FT3, FT4, or TSH levels are outside the normal range, consult your doctor for proper diagnosis and treatment guidance. Your doctor may recommend medications, lifestyle changes, or further investigations based on your condition.
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A Free Thyroid Profile test is often suggested when symptoms are not very specific but continue for some time, such as:
In many cases, people don’t notice much symptoms, yet a Free Thyroid Profile still helps in early detection of issues.
| Parameter | Normal Range |
| TSH | 0.4 – 4.0 mIU/L |
| Free T4 (FT4) | 0.8 – 1.8 ng/dL |
| Free T3 (FT3) | 2.3 – 4.2 pg/mL |
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