{"id":"glyca","name":"GlycA","shortName":"GlycA","aliases":["GlycA (NMR)","Glycoprotein Acetyls","Glyc A","NMR GlycA","GlycA Level","GlycA, NMR","GLYCA"],"abbreviations":["GlycA"],"loinc":[{"code":"82730-3","primary":true}],"specimen":"serum-or-plasma","units":[{"ucum":"umol/L","display":"µmol/L"}],"referenceRanges":[{"population":"Adults","low":null,"high":399.9,"unit":"umol/L","unitDisplay":"µmol/L","note":"Labcorp prints 'less than 400 µmol/L' and calls 400 its medical decision limit, with results of 400 or more in a 'High' group. It is a cutoff for grouping results, not the central 95% of healthy people. It is stored as 399.9 so that a result of exactly 400 falls outside it, because Labcorp reports whole numbers. Only Labcorp's NMR test is covered here. Research NMR platforms report 'GlycA' on a scale that is about three to four times higher, so those numbers can't be compared with this range.","sources":[{"title":"GlycA (Labcorp test 123850)","url":"https://www.labcorp.com/tests/123850/glyca","publisher":"Labcorp","year":2026},{"title":"GlycA, sample patient report (test 123850)","url":"https://files.labcorp.com/testmenu-d8/sample_reports/123850.pdf","publisher":"Labcorp","year":2016}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"An NMR measure that tracks several proteins that rise with inflammation. Some clinicians use it alongside hs-CRP.","url":"https://bloodtesttracker.com/markers/glyca","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}