{"id":"ige-elm","name":"Elm IgE","shortName":"Elm IgE","aliases":["T008-IgE Elm","t8","Elm (t8) IgE","t8 IgE","Elm, IgE, Serum","American Elm IgE","Elm, American","T008-IgE Elm, American","Allergen, Tree, Elm Tree","Ulmus americana IgE","White Elm IgE","ImmunoCAP t8","Elm Tree IgE","Elm pollen IgE"],"abbreviations":["t8","t008"],"loinc":[{"code":"6109-3","primary":true}],"specimen":"serum","units":[{"ucum":"kU/L","display":"kU/L"}],"referenceRanges":[{"population":"Adults","low":0,"high":0.09,"unit":"kU/L","unitDisplay":"kU/L","note":"This test shows whether your blood has IgE to elm tree pollen. Mayo Clinic Laboratories and ARUP print a result under 0.10 kU/L as class 0 (negative), so the usual range here ends at 0.09 and a printed 0.10 counts as above it. Labs draw the line in different places. Mayo Clinic Laboratories lists 0.10 to 0.34 kU/L as borderline, 0.35 to 0.69 as equivocal, and flags 0.70 and above as high; its reference values apply to all ages. ARUP prints a reference interval of 0.34 kU/L or lower and says results of 0.10 to 0.34 are for specialist use because their meaning is unclear. The ImmunoCAP maker recommends a 0.35 kUA/L cutoff and tells each lab to set its own range. A result above these lines shows sensitization, which is not the same as an allergy. Use the range printed on your own lab report.","sources":[{"title":"Elm, IgE, Serum (test ID ELM)","url":"https://www.mayocliniclabs.com/test-catalog/overview/82672","publisher":"Mayo Clinic Laboratories"},{"title":"Allergen, Tree, Elm Tree (ARUP test 0055042)","url":"https://ltd.aruplab.com/Tests/Pub/0055042","publisher":"ARUP Laboratories"},{"title":"ImmunoCAP Specific IgE (allergen component f447) 510(k) decision memorandum K173726","url":"https://www.accessdata.fda.gov/cdrh_docs/reviews/K173726.pdf","publisher":"U.S. Food and Drug Administration"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Measures IgE antibodies to American elm pollen, one of several tree pollens that can cause sneezing, congestion and itchy eyes.","url":"https://bloodtesttracker.com/markers/ige-elm","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}