Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay
Multiple patient encounters should be avoided.
Serum separator tube. Multiple specimen tubes should be avoided
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.25 mL serum plus 0.1 mL for each additional allergen ordered to an ARUP Standard Transport Tube. (Min: 0.25 mL plus 0.04 mL for each allergen ordered)
Hemolyzed, icteric, or lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
(reported in kU/L)
|Probability of IgE Mediated
|Less than 0.10||No significant level detected||0|
|0.10 - 0.34||Clinical relevance undetermined||0/1|
|0.35 - 0.70||Low||1|
|0.71 - 3.50||Moderate||2|
|3.51 - 17.50||High||3|
|17.51 - 50.00||Very high||4|
|50.01 - 100.00||Very high||5|
|Greater than 100.00||Very high||6|
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 vivo reactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.
Compliance Statement A: For laboratory developed tests using a manufacturer labeled ASR as the reagent providing the specificity of the assay. Analyte Specific Reagent. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.
|Component Test Code*||Component Chart Name||LOINC|
|2001924||Allergen, Food, Red Dye IgE||17511-7|
- Cochineal (Allergen, Food, Red Dye/Carmine (Red 4) IgE)
- Dactylopius coccus (Allergen, Food, Red Dye/Carmine (Red 4) IgE)