{"id":"ige-penicillium","name":"Penicillium chrysogenum IgE","shortName":"Penicillium IgE","aliases":["Penicillium notatum IgE","M001-IgE Penicillium chrysogenum","Penicillium notatum (m1) IgE","m1 IgE","Penicillium IgE","Penicillium, IgE","Penicillium, IgE, Serum","Penicillium chrysogenum, IgE, Serum","Penicillium chrysogenum (m1) IgE","Penicillium notatum, IgE","Allergen, Fungi and Molds, Penicillium notatum","Allergen, Fungi/Mold, P. notatum IgE","Mold Penicillium IgE","ImmunoCAP m1","Penicillium (m1) IgE","M001-IgE Penicillium chrysogen"],"abbreviations":["m1","m001"],"loinc":[{"code":"6212-5","primary":true},{"code":"112196-1","primary":false}],"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. Mold extracts vary in allergen content, which can make results less consistent than for some other allergens (mold review 2015), and results from different labs or test brands are not directly comparable.","sources":[{"title":"Allergen, Fungi and Molds, Penicillium notatum (ARUP test 0055080)","url":"https://ltd.aruplab.com/Tests/Pub/0055080","publisher":"ARUP Laboratories"},{"title":"Penicillium chrysogenum, IgE, Serum (test ID PENL)","url":"https://www.mayocliniclabs.com/test-catalog/overview/82913","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":"Mold Allergens in Respiratory Allergy: From Structure to Therapy","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC4397360/","publisher":"Allergy, Asthma & Immunology Research","year":2015},{"title":"Mold Allergy","url":"https://www.aaaai.org/conditions-treatments/allergies/mold-allergy","publisher":"American Academy of Allergy, Asthma & Immunology"},{"title":"Allergy Blood Test","url":"https://medlineplus.gov/lab-tests/allergy-blood-test/","publisher":"MedlinePlus, National Library of Medicine"},{"title":"m1 Penicillium chrysogenum (Allergen Encyclopedia)","url":"https://www.thermofisher.com/phadia/za/en/resources/allergen-encyclopedia/m1.html","publisher":"Thermo Fisher Scientific (Phadia)"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Measures IgE antibodies to Penicillium, a common mold, in your blood. A detectable result means you are sensitized, which is not the same as a mold allergy.","url":"https://bloodtesttracker.com/markers/ige-penicillium","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}