{"id":"ige-d-farinae","name":"D. farinae (American house dust mite) IgE","shortName":"D. farinae IgE","aliases":["Dust mite D. farinae IgE","D. farinae IgE","D002-IgE D. farinae","d2","Dust mite D. farinae (d2) IgE","d2 IgE","Dermatophagoides farinae IgE","Dermatophagoides farinae (d2) IgE","D farinae IgE","D002-IgE D farinae","American house dust mite IgE","Allergen, Mites, D. farinae IgE"],"abbreviations":["d2","D002","D. farinae"],"loinc":[{"code":"6095-4","primary":true},{"code":"112129-2","primary":false}],"specimen":"serum","units":[{"ucum":"kU/L","display":"kU/L"},{"ucum":"U/mL","display":"UA/mL"}],"referenceRanges":[{"population":"Adults","low":0,"high":0.1,"unit":"kU/L","unitDisplay":"kU/L","note":"Quest, Labcorp and ARUP all print a result under 0.10 kU/L as class 0 (absent, negative or no significant level), and 0.10 is also the lowest value the ImmunoCAP assay reports. Thermo Fisher, which makes the assay, treats results of 0.1 kUA/L or more as detected sensitization. Labs disagree about the 0.10 to 0.34 zone: Quest calls it a very low level, ARUP calls its clinical relevance undetermined (and lists 0.34 kU/L or less as its reference interval for this test), and Labcorp flags results from 0.10 kU/L upward, calling 0.10 to 0.31 class 0/I (equivocal or low). The older cutoff of 0.35 kU/L is still used in many studies, including the US NHANES survey, and a few labs go further: Children's Minnesota reports anything under 0.35 kU/L as negative. Labs print results below the limit as '<0.10', and a printed 0.10 is already class 0/1. A result above the range shows sensitization, not that you have an allergy (NIAID 2010, WAO 2020), and results from different labs or assay systems may not be comparable. The two main dust mite species are structurally very similar, so IgE made against one often reacts with the other (Choina 2024).","sources":[{"title":"ImmunoCAP Mite Allergens (Thermo Fisher product page; lists d1 and d2; measuring range 0.1 to 100 kUA/L)","url":"https://www.thermofisher.com/order/catalog/product/14489601","publisher":"Thermo Fisher Scientific"},{"title":"Allergens, Inhalants, Comprehensive Profile IgE (test 0055312)","url":"https://ltd.aruplab.com/Tests/Pub/0055312","publisher":"ARUP Laboratories"},{"title":"Allergen Profile With Component Reflexes, Respiratory, Area 2 (test 607111)","url":"https://www.labcorp.com/tests/607111/allergen-profile-with-component-reflexes-respiratory-area-2","publisher":"Labcorp"},{"title":"Sample patient report: Allergens with Component Reflex, Area 20 (test 607120)","url":"https://files.labcorp.com/testmenu-d8/sample_reports/607120.pdf","publisher":"Labcorp","year":2021},{"title":"ImmunoCAP Specific IgE Blood Test: Allergy Test List (interpretation table and test codes)","url":"https://www.questdiagnostics.com/content/dam/corporate/restricted/documents/hcp/about-our-tests/TL3930_Allergy%20Test%20list%202017.pdf","publisher":"Quest Diagnostics","year":2017},{"title":"ImmunoCAP Specific IgE blood test results: Interpretation (respiratory results interpretation guide)","url":"https://corporate.thermofisher.com/content/dam/phadia/library/en/Respiratory%20Results%20Interpretation%20Guide.pdf","publisher":"Thermo Fisher Scientific (Phadia)","year":2023},{"title":"Prevalence of allergic sensitization in the United States: results from the National Health and Nutrition Examination Survey (NHANES) 2005-2006","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC4119838/","publisher":"Journal of Allergy and Clinical Immunology","year":2014},{"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":"NIAID / Journal of Allergy and Clinical Immunology","year":2010},{"title":"IgE allergy diagnostics and other relevant tests in allergy, a World Allergy Organization position paper","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC7044795/","publisher":"World Allergy Organization Journal","year":2020},{"title":"Dermatophagoides pteronyssinus proteins and their role in the diagnostics and management of house dust mite allergy","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11404092/","publisher":"Advances in Dermatology and Allergology","year":2024},{"title":"Update on House Dust Mite Allergen Avoidance Measures for Asthma","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC7305068/","publisher":"Current Allergy and Asthma Reports","year":2020},{"title":"Allergen IgE (laboratory test manual entry; class table and reporting rules)","url":"https://www.childrensmn.org/Manuals/Lab/chemistry/allergen-ige.pdf","publisher":"Children's Minnesota","year":2018}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Shows whether your immune system has made IgE antibodies to Dermatophagoides farinae, one of the two main house dust mite species.","url":"https://bloodtesttracker.com/markers/ige-d-farinae","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}