How does levothyroxine therapy affect thyroid function studies?
Are thyroid function test results affected by the timing of the previous levothyroxine dose? To answer this question, the authors asked 101 consecutive patients when they took the last dose and then correlated the time elapsed with the results of thyroid assays. Their findings are discussed in this article.
Stoffer
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Oakland Internists Associates, Southfield, MI 48034.
Szpunar
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D000284:Administration, Oral; D000328:Adult; D006801:Humans; D008875:Middle Aged; D013960:Thyroid Function Tests; D013963:Thyroid Hormones / Q000097:blood*; D013972:Thyrotropin / Q000097:blood; D013974:Thyroxine / Q000008:administration & dosage / Q000097:blood / Q000627:therapeutic use*; D013997:Time Factors; D014284:Triiodothyronine / Q000097:blood
D013963:Thyroid Hormones; D014284:Triiodothyronine; D013972:Thyrotropin; D013974:Thyroxine