How we write and check Learn content

Every lab-test page starts from a curated registry that we maintain by hand: the marker name and aliases, the units in both conventional and SI form, the adult reference ranges and the published source those ranges come from. The numbers you see in the range tables come from that registry, not from a language model.

An AI model then drafts the explanation around those numbers in plain language. It is instructed to use only the registry values, to avoid diagnosis and personal advice, and to cite recognised publishers such as MedlinePlus, the NIH, the CDC and professional societies.

A person reads the draft, opens every source, corrects anything that is wrong or unclear, and only then marks the page as published. Pages that have not passed this step show a draft badge and are hidden from search engines.

Learn pages are educational. They are not a diagnosis, a treatment recommendation or a substitute for your clinician. Reference ranges vary between laboratories, populations and methods, and a value outside a typical range is a reason to ask a question, not a conclusion. We show adult ranges only and say so on every page.

Today the pages are written and checked by the MediWing editorial team, and the byline says exactly that. We do not claim medical review until it is true. When a credentialed clinician reviews a page, their name, credentials and review date will appear in the byline and in the page markup, with no other change to the page.