{"id":"gastrin","name":"Gastrin","shortName":"Gastrin","aliases":["Gastrin, Fasting","Gastrin, Serum","Fasting Gastrin","Gastrin Level","Gastrin (Total)","Serum Gastrin","Fasting Serum Gastrin"],"abbreviations":[],"loinc":[{"code":"2333-3","primary":true},{"code":"15072-2","primary":false},{"code":"29395-1","primary":false}],"specimen":"serum","units":[{"ucum":"pg/mL","display":"pg/mL"},{"ucum":"ng/L","display":"ng/L"},{"ucum":"pmol/L","display":"pmol/L"}],"referenceRanges":[{"population":"16+","low":0,"high":115,"unit":"pg/mL","unitDisplay":"pg/mL","note":"Labcorp's fasting interval for people older than 16 (immunochemiluminometric assay, 12 to 14 hours of fasting). MedlinePlus and a 2021 review of gastrinoma both describe normal as under 100 pg/mL (about 48 pmol/L), so limits differ a little between labs. Labcorp prints separate fasting-time-specific intervals for infants and for ages 22 months to 16 years, which are not included here.","sources":[{"title":"Gastrin, Serum (test 004390)","url":"https://www.labcorp.com/tests/004390/gastrin","publisher":"Labcorp"},{"title":"Gastrin blood test","url":"https://medlineplus.gov/ency/article/003697.htm","publisher":"MedlinePlus Medical Encyclopedia (National Library of Medicine)"},{"title":"Gastrinoma and Zollinger Ellison syndrome: A roadmap for the management between new and old therapies","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC8475006/","publisher":"World Journal of Gastroenterology","year":2021}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A stomach hormone that tells the stomach to make acid. The blood test is done after fasting and is read alongside acid-reducing medicines and other results.","url":"https://bloodtesttracker.com/markers/gastrin","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}