- 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
|Test Number||Components||Reference Interval|
|0055024||Allergen, Food, Peanut||Effective 02/18/2014
|Allergen, Food, Severe Peanut Ara h 1||0.09 kU/L or less|
|Allergen, Food, Severe Ara h 2||0.09 kU/L or less|
|Allergen, Food, Severe Peanut Ara h 3||0.09 kU/L or less|
|Allergen, Food, Severe Peanut Ara h 9||0.09 kU/L or less|
|Allergen, Food, Mild Peanut Ara h 8||0.09 kU/L or less|
Allergen results of 0.10-0.34 kU/L 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 vivoreactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.
Allergen, Food, Peanut Component Interp:
Negative: No specific antibodies to peanut detected. However, this does not rule out in vivo sensitivity.
Mild Risk: May be associated with mild or localized reactions. Suggest consultation with specialist.
Severe Risk:Ara h 1, 2, 3, and 9 are the peanut proteins most linked to systemic allergic reactions. If any one of these 4 components is positive, the patient has a high risk of systemic allergic reaction when exposed to peanuts.
Inconclusive: Will be reported if one of the following patterns is found:
1. Antibodies to Peanut IgE (whole peanut) detected but all peanut components were negative. Repeat testing with a new specimen or refer to a specialist.
2. One or more peanut components were positive but Peanut IgE (whole peanut) was negative. Repeat testing with a new specimen or refer to a specialist.
|Component Test Code*||Component Chart Name|
|0055024||Allergen, Food, Peanut IgE|
|2010810||Allergen, Food, Severe Peanut Ara h 1|
|2010811||Allergen, Food, Severe Peanut Ara h 2|
|2010812||Allergen, Food, Severe Peanut Ara h 3|
|2010813||Allergen, Food, Severe Peanut Ara h 9|
|2010814||Allergen, Food, Mild Peanut Ara h 8|
|2010815||EER Allergen, Peanut Components|
|2010879||Allergen, Food, Peanut Components Interp|
- Peanut Component Package
- Peanut molecular allergy
- Peanut Test
- uKnow Peanut