{"id":"ige-oak","name":"Oak IgE","shortName":"Oak IgE","aliases":["T007-IgE Oak","Oak (t7) IgE","t7 IgE","T007-IgE Oak, White","Oak, White IgE","White Oak IgE","Oak, IgE, Serum","Oak, IgE","Allergen, Tree, Oak Tree","Allergen, Tree, Oak Tree IgE","Quercus alba IgE","ImmunoCAP t7","IgE Oak","Oak (t007) IgE"],"abbreviations":["t7","t007"],"loinc":[{"code":"6189-5","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":"Most labs print a result under 0.10 kU/L as negative (class 0). ARUP Laboratories calls 0.10 to 0.34 kU/L 'clinical relevance undetermined' and says those results are intended for specialist use. An older Mayo Clinic Laboratories listing for this test treats under 0.35 kU/L as negative, with the same values at all ages. The ImmunoCAP maker suggests a 0.35 kUA/L cutoff and tells each lab to set its own range. A result above these lines means sensitization, which is not the same as an allergy. Oak and birch pollen are strongly cross-reactive (Bernstein 2021), so a raised oak result can come from IgE made against birch or other related trees. Results from different labs or test brands are not directly comparable.","sources":[{"title":"Allergen, Tree, Oak Tree (ARUP test 0055045)","url":"https://ltd.aruplab.com/Tests/Pub/0055045","publisher":"ARUP Laboratories"},{"title":"Oak, IgE, Serum (test ID OAK)","url":"https://www.mayocliniclabs.com/test-catalog/overview/82673","publisher":"Mayo Clinic Laboratories"},{"title":"510(k) Decision Memorandum K173726: ImmunoCAP Specific IgE (ImmunoCAP Allergen f447, rAra h 6, Peanut)","url":"https://www.accessdata.fda.gov/cdrh_docs/reviews/K173726.pdf","publisher":"U.S. Food and Drug Administration","year":2018},{"title":"Guidelines for the diagnosis and management of food allergy in the United States: report of the NIAID-sponsored expert panel","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC4241964/","publisher":"Journal of Allergy and Clinical Immunology","year":2010},{"title":"Allergy to oak pollen in North America","url":"https://pubmed.ncbi.nlm.nih.gov/33404388/","publisher":"Allergy and Asthma Proceedings","year":2021},{"title":"Birch pollen allergy in Europe","url":"https://pubmed.ncbi.nlm.nih.gov/30829410/","publisher":"Allergy","year":2019},{"title":"Is allergy immunotherapy with birch sufficient to treat patients allergic to pollen of tree species of the birch homologous group?","url":"https://pubmed.ncbi.nlm.nih.gov/31758559/","publisher":"Allergy","year":2020},{"title":"Allergy Blood Test","url":"https://medlineplus.gov/lab-tests/allergy-blood-test/","publisher":"MedlinePlus, National Library of Medicine"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Measures IgE antibodies to white oak pollen in your blood. A detectable result means you are sensitized, which is not the same as an allergy.","url":"https://bloodtesttracker.com/markers/ige-oak","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}