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  • Title: Interpreting thyroid tests in the elderly: updated guidelines.
    Author: Rock RC.
    Journal: Geriatrics; 1985 Dec; 40(12):61-8. PubMed ID: 3934049.
    Abstract:
    T4 determinations by themselves have been reported to be cost-effective as a screening test to identify patients with unsuspected thyroid disease. The most consistent finding in healthy older subjects, that of a decrease in circulating T3, means that reference intervals for T3 need to be adjusted downward by as much as 25%.
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