Allergen, Food, Peanut Components IgE
Ordering Recommendation
Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Multiple patient encounters should be avoided 
Serum separator tube (SST). Multiple specimen tubes should be avoided 
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.6 mL serum plus 0.1 mL for each additional allergen ordered to an ARUP Standard Transport Tube. (Min: 0.4 mL plus 0.04 mL for each allergen ordered) 
Storage/Transport Temperature
Unacceptable Conditions
Hemolyzed, icteric, or lipemic specimens 
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year 
Reference Interval
Effective August 18, 2014
Test Number
Reference Interval
0055024Allergen, Food, PeanutEffective 02/18/2014
Reporting Range
(reported in kU/L)
Probability of IgE Mediated
Clinical Reaction
Class Scoring
Less than 0.10No significant level detected0
0.10 - 0.34Clinical relevance undetermined0/1
0.35 - 0.70Low1
0.71 - 3.50Moderate2
3.51 - 17.50High3
17.51 - 50.00Very high4
50.01 - 100.00Very high5
Greater than 100.00Very high6

 Allergen, Food, Severe Peanut Ara h 10.09 kU/L or less
 Allergen, Food, Severe Peanut Ara h 20.09 kU/L or less
 Allergen, Food, Severe Peanut Ara h 30.09 kU/L or less
 Allergen, Food, Severe Peanut Ara h 90.09 kU/L or less
 Allergen, Food, Mild Peanut Ara h 80.09 kU/L or less

Interpretive Data
Allergen results of 0.10-0.34 kU/L for whole peanut are intended for specialist use as the clinical relevance is undetermined. Even though increasing ranges are reflective of increasing concentrations of allergen-specific IgE, these concentrations may not correlate with the degree of clinical response or skin testing results when challenged with a specific allergen. The correlation of allergy laboratory results with clinical history and in vivo reactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.

Test methodology uses solid-phase immunoassays against the whole peanut allergen (f13) and 5 antigenic epitopes (Ara h1, Ara h2, Ara h3, Ara h8, and Ara h9) and measures IgE antibody concentrations in patient serum or plasma. The binding of a specific IgE to an immobilized allergen component is detected by the addition of a secondary fluorescence-labeled anti-human IgE antibody.
Hotline History
View Hotline History
Component Test Code*Component Chart NameLOINC
0055024Allergen, Food, Peanut IgE6206-7
2010810Allergen, Food, Severe Peanut Ara h 158779-0
2010811Allergen, Food, Severe Peanut Ara h 258778-2
2010812Allergen, Food, Severe Peanut Ara h 358777-4
2010813Allergen, Food, Severe Peanut Ara h 964965-7
2010814Allergen, Food, Mild Peanut Ara h 863477-4
2010815EER Allergen, Peanut Components11526-1
2010879Allergen, Food, Peanut Components Interp48767-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
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