Reference Range
A reference range is the interval of values considered normal for a healthy population for a given test — for example a blood test — against which a patient's result is flagged as normal, high, or low. The range is context-dependent: it varies with sex, age, and the laboratory method used, so the same number can be normal in one context and abnormal in another.
Because reference ranges are population statistics rather than personal targets, a result just outside the range is not automatically a diagnosis, and a result inside it does not always rule out a problem. This is why borderline values need clinical judgement rather than a simple pass or fail.
In MCU (Medical Check-Up) report automation, governed healthcare AI can flag results against the right reference range and assemble the report, but the doctor still interprets borderline findings and signs off. AI writes. Doctors decide.
Micromeet — AI for governed healthcare. See the public benchmark →