ARUP's Laboratory Test Directory

Allergens, Upper Respiratory Disease Profile, Region 9A : 0051355

Mnemonic: R9A URD

Methodology: Quantitative ImmunoCAP® Fluorescent Enzyme Immunoassay
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: Patient Prep: Multiple patient encounters should be avoided.

Collect: Serum separator tube. Multiple specimen tubes should be avoided.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1.65 mL serum to an ARUP Standard Transport Tube. (Min: 0.80 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Hemolyzed, icteric or lipemic specimens

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval:
Less than 0.10 kU/L: No significant level detected
0.10-0.34 kU/L: Clinical relevance undetermined
0.35-0.70 kU/L: Low
0.71-3.50 kU/L: Moderate
3.51-17.50 kU/L: High
17.51 kU/L or Greater: Very High
Interpretive Data: 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.
Note: Allergens included: Alternaria alternata, Box Elder/Maple Tree, Cat Dander, Cottonwood Tree, D. farinae (mites), June Grass, Pigweed, Russian Thistle, Hormodendrum, Elm Tree, Oak Tree, Aspergillus fumigatus, Common Ragweed, Cockroach (German), Dog Dander.
CPT Code(s): 86003 x15