Be Aware That Biotin May Skew Lab Test Results

Patients will ask you whether the B vitamin biotin may interfere with labs...due to a new FDA warning.

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

For example, biotin can cause falsely low TSH or PSA levels...or falsely high free T3 or T4, folate, or testosterone levels.

Get concise advice on drug therapy, plus unlimited access to CE

Pharmacist's Letter includes:

  • 12 issues every year, with brief articles about new meds and hot topics
  • 300+ CE courses, including the popular CE-in-the-Letter
  • Quick reference drug comparison charts
  • Access to the entire archive

Already a subscriber? Log in

Volume pricing available. Get a quote