KnowraThyroid function testsLinked fromLinked fromThe 16 pages that link to Thyroid function tests, each with the reason it gives.All 16Broader topic 2Related 12Narrower topic 2Thyroid hormonesRelated: These measurements infer whether hormone production and feedback are appropriately balanced.HypothyroidismRelated: Their patterns help confirm hypothyroidism and locate the level of dysfunction.HyperthyroidismRelated: A suppressed TSH with elevated thyroid hormones commonly supports the diagnosis.Hypothalamic–pituitary–thyroid axisRelated: Their patterns reveal whether axis output is excessive, deficient, or discordant.LevothyroxineRelated: These tests guide dose adjustments and help detect under- or over-replacement.ThyroxineRelated: T4 measurements help identify and monitor thyroid dysfunction.Graves diseaseRelated: Graves disease typically produces low TSH with elevated free thyroxine or triiodothyronine.TriiodothyronineRelated: T3 measurements help evaluate suspected thyroid dysfunction in selected cases.Thyrotropin-releasing hormoneRelated: TRH stimulation testing supplements these measurements when central dysfunction is suspected.GoiterRelated: They help determine whether a goiter accompanies underactive, overactive, or normal thyroid function.PalpitationsRelated: Excess thyroid hormone can cause a fast heartbeat and associated palpitations.Hypokalemic periodic paralysisRelated: They help identify thyrotoxic periodic paralysis, an acquired and treatable look-alike.