Thyroid function during the course of deQuervain’s (subacute) thyroiditis. During the thyrotoxic phase, Total T4 is high, and TSH is suppressed. Later during the period of hypothyroidism there is gradual increase in TSH until TSH is normalized. Radioactive Iodine uptake which is initially suppressed improves during recovery phase. | Shrestha RT, Hennessey J. Acute and Subacute, and Riedel’s Thyroiditis. [Updated 2015 Dec 8]. In: Feingold KR, Anawalt B, Boyce A, et al., editors. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK285553/

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