{"id":"estrone","name":"Estrone (E1)","shortName":"Estrone","aliases":["Estrone","Estrone, Serum","Estrone, LC/MS/MS","Estrone by Mass Spec","Estrone, by Mass Spectrometry","Estrone, HPLC-MS/MS","Oestrone","Estrone (E1)"],"abbreviations":[],"loinc":[{"code":"2258-2","primary":true},{"code":"22663-9","primary":false},{"code":"35208-8","primary":false}],"specimen":"serum","units":[{"ucum":"pg/mL","display":"pg/mL"},{"ucum":"pmol/L","display":"pmol/L"}],"referenceRanges":[{"population":"Men, 18+","low":10,"high":50,"unit":"pg/mL","unitDisplay":"pg/mL","note":"Labcorp HPLC-MS/MS interval for adult men. Mayo Clinic Laboratories lists 10-60 pg/mL and ARUP lists 9-36 pg/mL (ages 18 and older). Intervals for children depend on puberty stage and differ between labs.","sources":[{"title":"Endocrinology Expected Values and S.I. Unit Conversion Tables","url":"https://specialtytesting.labcorp.com/sites/default/files/2021-07/L5167-0421-18%20Endocrine%20Expected%20Values_0.pdf","publisher":"Labcorp (Endocrine Sciences specialty testing)","year":2021},{"title":"Estrone (E1) (Mayo Clinic Laboratories test E1), UW Medicine Laboratory Test Guide","url":"https://testguide.labmed.uw.edu/view/RESTRN","publisher":"UW Medicine Laboratory Medicine and Pathology (reproducing Mayo Clinic Laboratories information)"},{"title":"Estrone, by Mass Spectrometry (test 0093249)","url":"https://ltd.aruplab.com/Tests/Pub/0093249","publisher":"ARUP Laboratories"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A weaker estrogen made by the ovaries and by fat tissue. It is the main estrogen after menopause.","url":"https://bloodtesttracker.com/markers/estrone","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}