SubEx
Biotin (Vitamin B7)·Care for skin and hair·finding 05 of 17
★★☆Single study — solid evidence, such as one good trial or a large observational dataset, but not replicated at the top tier.

Other · single study

Fourteen heart-attack tests were still listed as unfixed

The US Food and Drug Administration lists, by manufacturer, cleared troponin devices whose makers had not addressed biotin interference. Fourteen are on it.

What the study found

The FDA names 14 troponin devices that had not fixed the problem

The US Food and Drug Administration listed, by manufacturer and clearance number, the cleared devices for troponin, the blood marker of heart damage, whose makers had not addressed biotin interference. Fourteen of them. That counts the ones that had not, not the many that had.

The caveat · No size given for any device's error

The table names devices the agency judged had not addressed the risk, and puts no number on the size of the error on any of them. Several entries are point-of-care strip tests rather than the laboratory analysers most hospitals run, and some clearances date to the 1990s. The page carries no version marker, so the count of fourteen is a snapshot of one day in September 2026.