There are a few circumstances that may affect Free T3 (triiodothyronine) test results. The following two test descriptions from LabCorp, a major nationwide diagnostic laboratory, indicate conditions which may interfere with testing and when the Dialysis and LC/MS-MS may be preferred. Biotin may interfere with Free T3 and other thyroid tests. Thyroid antibodies may interfere… Continue reading Update on Free T3 Testing
Thyroid Cancer Advocates 