Understand Your Thyroid Tests Posted July 5, 2019 by admin 1 0 8 Thyroid Micro-EntryAll substance, no fluff. Interference with lab tests could be causing misdiagnoses, and even mistreatment, in an unknown number of patients. Both supplements and medications can cause variances in such thyroid tests. Related Posts Testosterone Replacement Therapy Breast Cancer and Testosterone Therapy in Women