Contact Your Lab if Patients Report High Biotin Use

February 2018

You'll hear that the B vitamin biotin may interfere with labs.

Many lab assays use biotin...so it's not a big surprise that high levels of biotin in the blood may skew results.

For example, biotin may cause falsely low CK-MB, proBNP, TSH, or procalcitonin...or falsely high free T3 or T4 or vitamin D.

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