The Food and Drug Administration cautioned consumers in January to avoid a product called GoLean Detox. The agency’s laboratory analysis showed that the product contained ingredients from two potentially dangerous drugs, even though it was advertised as an all-natural herbal supplement to help with weight loss.

Health care providers rely on a variety of tools to diagnose conditions and guide treatment decisions. Among the most common and widely used are <i>in vitro</i> diagnostics (IVDs), which are clinical tests that analyze samples taken from the human body. Patients may receive—or forgo—medical care based on diagnostic test results, making it critically important that tests are reliable.