{"id":"fructosamine","name":"Fructosamine","shortName":"Fructosamine","aliases":["Glycated Serum Protein","Serum Fructosamine","Fructosamine, Serum","FRA","Fructosamine Level","GSP"],"abbreviations":["FRA","GSP"],"loinc":[{"code":"15069-8","primary":true},{"code":"33805-3","primary":false}],"specimen":"serum-or-plasma","units":[{"ucum":"umol/L","display":"µmol/L"}],"referenceRanges":[{"population":"Adults","low":205,"high":285,"unit":"umol/L","unitDisplay":"µmol/L","note":"Quest Diagnostics prints 205 to 285 µmol/L (test 8340), and Labcorp prints the same interval for healthy adults aged 20 to 60 (test 100800). A 2019 laboratory paper quotes the same figures as a manufacturer interval. Intervals measured in healthy groups range from about 186 to 325 µmol/L depending on the assay and the population. Pregnancy needs its own ranges. Always compare with the range printed on your lab report.","sources":[{"title":"Fructosamine (test code 8340)","url":"https://testdirectory.questdiagnostics.com/test/test-detail/8340/fructosamine?cc=MASTER","publisher":"Quest Diagnostics"},{"title":"Fructosamine (test 100800)","url":"https://www.labcorp.com/tests/100800/fructosamine","publisher":"Labcorp"},{"title":"Establishing a blood fructosamine reference range for the Brazilian population based on data from ELSA-Brasil","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC6295605/","publisher":"Practical Laboratory Medicine","year":2019}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Fructosamine measures sugar-coated proteins in your blood, mostly albumin, and reflects your average blood sugar over the last 2 to 4 weeks.","url":"https://bloodtesttracker.com/markers/fructosamine","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}