Assay performed on Roche Elecsys (ECLIA)
Reference Interval: <= 1.8 IU/L (Roche kit insert)
Serum Stability: 2-8C 6 days, -20C 12 months, Freeze/Thaw only once.
Note: Biotin supplementation may cause falsely high results due to interference with the anti TSH-Receptor Ab assay. If this patient is known to be taking Biotin, interpret results with caution and contact the Chemical Pathologist (03) 90763118 if further discussion is required.