title: Thyroid dysfunction.
abstract: This article reviews currently available thyroid function tests and considers the utility of these tests in the investigation of suspected thyroid dysfunction. Potential thyroid screening tests as well as those secondary tests useful in establishing or excluding thyroid dysfunction are evaluated. Current controversies regarding free thyroid hormone and sensitive TSH assays are considered, and algorithms are provided for diagnosing both hypothyroidism and thyrotoxicosis.
authors.affiliation: Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota.
authors.forename: I D
authors.initials: ID
authors.lastname: Hay
authors.forename: G G
authors.initials: GG
authors.lastname: Klee
mesh_terms: D006801:Humans; D013959:Thyroid Diseases / Q000175:diagnosis* / Q000503:physiopathology; D013960:Thyroid Function Tests