{"id":"androstenedione","name":"Androstenedione","shortName":"Androstenedione","aliases":["A4","Delta-4-Androstenedione","Androstenedione, LC/MS/MS","Androstenedione, Serum","4-Androstenedione","4-Androstene-3,17-dione","Androstenedione by LC-MS/MS","Androstenedione, LC-MS/MS","Androstenedione, HPLC-MS/MS","Androstenedione (A4)"],"abbreviations":["A4"],"loinc":[{"code":"1854-9","primary":true},{"code":"14603-5","primary":false},{"code":"107493-9","primary":false},{"code":"35190-8","primary":false}],"specimen":"serum","units":[{"ucum":"ng/dL","display":"ng/dL"},{"ucum":"nmol/L","display":"nmol/L"},{"ucum":"ng/mL","display":"ng/mL"}],"referenceRanges":[{"population":"Men, 18–40","low":44,"high":186,"unit":"ng/dL","unitDisplay":"ng/dL","note":"Labcorp HPLC-MS/MS interval for men aged 18-40. Mayo Clinic Laboratories lists 40-150 ng/dL for men 19 and older. Intervals differ between labs and methods, so use the range printed on your own report.","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":"Androstenedione (Mayo Clinic Laboratories test ANST), UW Medicine Laboratory Test Guide","url":"https://testguide.labmed.uw.edu/view/RANDRS","publisher":"UW Medicine Laboratory Medicine and Pathology (reproducing Mayo Clinic Laboratories information)"}]},{"population":"Women, 18–40","low":28,"high":230,"unit":"ng/dL","unitDisplay":"ng/dL","note":"Labcorp HPLC-MS/MS interval for women aged 18-40, across the whole menstrual cycle. Mayo Clinic Laboratories lists 30-200 ng/dL for women 19 and older.","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":"Androstenedione (Mayo Clinic Laboratories test ANST), UW Medicine Laboratory Test Guide","url":"https://testguide.labmed.uw.edu/view/RANDRS","publisher":"UW Medicine Laboratory Medicine and Pathology (reproducing Mayo Clinic Laboratories information)"}]},{"population":"Men, 41+","low":40,"high":150,"unit":"ng/dL","unitDisplay":"ng/dL","note":"Mayo Clinic Laboratories LC-MS/MS interval for men 19 and older, applied here from age 41 because the Labcorp interval stops at 40. The UW Medicine page that reproduces it shows a 2007 effective date, so Mayo's current interval may differ. Androstenedione tends to fall with age.","sources":[{"title":"Androstenedione (Mayo Clinic Laboratories test ANST), UW Medicine Laboratory Test Guide","url":"https://testguide.labmed.uw.edu/view/RANDRS","publisher":"UW Medicine Laboratory Medicine and Pathology (reproducing Mayo Clinic Laboratories information)"}]},{"population":"Women, 41+","low":30,"high":200,"unit":"ng/dL","unitDisplay":"ng/dL","note":"Mayo Clinic Laboratories LC-MS/MS interval for women 19 and older, applied here from age 41 because the Labcorp interval stops at 40. The UW Medicine page that reproduces it shows a 2007 effective date, so Mayo's current interval may differ. For postmenopausal women, the lower postmenopausal interval above applies.","sources":[{"title":"Androstenedione (Mayo Clinic Laboratories test ANST), UW Medicine Laboratory Test Guide","url":"https://testguide.labmed.uw.edu/view/RANDRS","publisher":"UW Medicine Laboratory Medicine and Pathology (reproducing Mayo Clinic Laboratories information)"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A hormone made by the adrenal glands and by the ovaries or testes. The body turns it into testosterone and estrogen.","url":"https://bloodtesttracker.com/markers/androstenedione","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}