hrp0086rfc11.6 | Thyroid | ESPE2016

Falsely TSH and Free Thyroid Hormone Measurements in Pediatric Patients Treated with High Dose of Biotin

Gal Moran , Hemi Rina , Gruber Noah , Sheinvald Sharon , Landau Yuval , Rubinshtein Marina , Kanety Hannah , Pinhas-Hamiel Orit

Background: Immunoassays are subjected to a number of interferences giving abnormal results which may lead to unnecessary investigations and treatment. We present clinical cases in which biotin treatment could be involved in abnormal results of thyroid function tests (TFTs) obtained by immunoassays based on biotinylated antibodies/analogs.Objective and hypotheses: Three infants were admitted to intensive care unit (ICU) during 2015, in Edmond and Lilly S...