# bloodwork.md

> Understand your blood test. A plain-language reference for blood-test biomarkers — what each test is, its normal
> range (attributed to named labs, never merged or invented), and what moves it. Names and ranges are derived from
> LOINC and MedlinePlus (US National Library of Medicine); nothing medical is hand-authored.

## Biomarkers
- [Biomarkers](https://bloodwork.md/biomarkers): the common blood tests people get (search covers the full catalog)
- Each test: https://bloodwork.md/biomarkers/{name} — e.g. /biomarkers/vitamin-c, /biomarkers/glucose, /biomarkers/tsh
- Markdown twin: append `.md` to any test URL, or send `Accept: text/markdown`.

## Panels
- [Panels](https://bloodwork.md/panels): common lab panels (metabolic, lipid, thyroid, iron…) and their component tests

## Categories
- [Categories](https://bloodwork.md/categories): biomarkers grouped for reading (heart, kidney, hormones, vitamins…)

## Reference (code systems)
- [LOINC codes](https://bloodwork.md/reference/loinc): searchable LOINC lab-test terminology
- [ICD-10-CM codes](https://bloodwork.md/reference/icd): searchable diagnosis codes

## Machine access
- Any content page returns markdown: append `.md` (e.g. /biomarkers.md, /conditions.md, /biomarkers/glucose.md) or send `Accept: text/markdown`.
- Full corpus in one file: https://bloodwork.md/llms-full.txt — every biomarker with its cited range, abnormal-associations, and what-moves-it.
- Sitemap: https://bloodwork.md/sitemap.xml