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Thyroid Testing for Hypothyroidism: Clinical Effectiveness and Guidelines

Last updated: November 15, 2018
Project Number: RB1281-000
Product Line: Rapid Response
Research Type: Devices and Systems
Report Type: Summary of Abstracts
Result type: Report

Question

  1. What is the effectiveness of assessing free T3 or T4 to screen for hypothyroidism?
  2. What is the effectiveness of assessing free T3 or T4 levels to monitor or adjust levothyroxine dose?
  3. What are the evidence-based guidelines regarding thyroid testing for screening or monitoring patients with hypothyroidism?

Key Message

Two systematic reviews, one non-randomized study, four evidence-based guidelines, and one systematic review of guidelines were identified regarding the assessment of free T3 or T4 to screen for hypothyroidism.