What should be done when thyroid function tests do not make sense?
Clinical Endocrinology, 05/23/2011Gurnell M et al.
Interpretation of thyroid function tests (TFTs) is generally straightforward. However, in a minority of contexts the results of thyroid hormone and thyrotropin measurements either conflict with the clinical picture or form an unusual pattern. In many such cases, reassessment of the clinical context provides an explanation for the discrepant TFTs; in other instances, interference in one or other laboratory assays can be shown to account for divergent results; uncommonly, genetic defects in the hypothalamic–pituitary–thyroid axis are associated with anomalous TFTs.
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