{"id":"ige-salmon","name":"Salmon IgE","shortName":"Salmon IgE","aliases":["F041-IgE Salmon","f41","Salmon IgE","Salmon (f41) IgE","f41 IgE","Allergen, Food, Salmon IgE","Allergen, Food, Salmon","Atlantic salmon IgE","Salmo salar IgE","ImmunoCAP f41"],"abbreviations":["f41","F041"],"loinc":[{"code":"6237-2","primary":true},{"code":"112095-5","primary":false}],"specimen":"serum","units":[{"ucum":"kU/L","display":"kU/L"},{"ucum":"U/mL","display":"UA/mL"}],"referenceRanges":[{"population":"Adults","low":0,"high":0.09,"unit":"kU/L","unitDisplay":"kU/L","note":"Class 0, under 0.10 kU/L, is the 'none detected' cutoff: Labcorp prints 'Class 0' (under 0.10 kU/L, negative) as the reference interval for this test, so the range is encoded as 0 to 0.09. Quest and ARUP also print a result under 0.10 kU/L as class 0, and a printed 0.10 is already class 0/1 (Labcorp 'equivocal/low'). ARUP calls 0.10 to 0.34 'clinical relevance undetermined' and says results in that range are for specialist use, and Quest calls it a very low level. Thermo Fisher, which makes the ImmunoCAP system, says results of 0.1 kUA/L or more indicate sensitization. The older 0.35 kU/L cutoff is still used in many studies, including the US NHANES survey. A result above the range shows sensitization, not that you have an allergy (NIAID 2010), and results from different labs or assay systems may not be comparable. For fish, IgE to salmon often reflects parvalbumin, a protein shared by many fish, and serologic cross-reactivity between fish does not always match what happens when you eat them (Dijkema 2022; NIAID 2010).","sources":[{"title":"F041-IgE Salmon (test 602507)","url":"https://www.labcorp.com/tests/602507/salmon","publisher":"Labcorp"},{"title":"Sample patient report: F041-IgE Salmon (test 602507)","url":"https://files.labcorp.com/testmenu-d8/sample_reports/602507.pdf","publisher":"Labcorp"},{"title":"Allergen, Food, Salmon (test 0099680)","url":"https://ltd.aruplab.com/Tests/Pub/0099680","publisher":"ARUP Laboratories"},{"title":"Allergens, Food, Fish Profile IgE (test 2007036)","url":"https://ltd.aruplab.com/Tests/Pub/2007036","publisher":"ARUP Laboratories"},{"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":"Your quick guide to using ImmunoCAP Specific IgE testing","url":"https://corporate.thermofisher.com/content/dam/phadia/library/en/Quick_guide_to_using_ImmunoCAP_Specific_IgE_testing.pdf","publisher":"Thermo Fisher Scientific (Phadia)"},{"title":"Allergen Encyclopedia: f41 Salmon (Atlantic)","url":"https://www.thermofisher.com/phadia/wo/en/resources/allergen-encyclopedia/f41.html","publisher":"Thermo Fisher Scientific (Phadia)"},{"title":"Guidelines for the Diagnosis and Management of Food Allergy in the United States: Report of the NIAID-Sponsored Expert Panel","url":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4241964/","publisher":"NIAID / Journal of Allergy and Clinical Immunology","year":2010},{"title":"Fish Allergy: Fishing for Novel Diagnostic and Therapeutic Options","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC8818006/","publisher":"Clinical Reviews in Allergy & Immunology","year":2022},{"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":"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":"Shows whether your immune system has made IgE antibodies to salmon. This is called sensitization and doesn't always mean a fish allergy.","url":"https://bloodtesttracker.com/markers/ige-salmon","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}