Should thyroid test be done fasting?

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Virginia Howe asked a question: Should thyroid test be done fasting?
Asked By: Virginia Howe
Date created: Tue, Jul 20, 2021 9:08 PM
Date updated: Wed, Dec 7, 2022 4:17 AM

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Is Fasting Required for a Thyroid Test? Most doctors will suggest you do not fast before your thyroid function test. Research shows that fasting, especially early in the morning, may impact TSH levels. A fasting test typically results in higher TSH levels versus one done in the afternoon.

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