Ordering Recommendation
Mnemonic
WEST PRO
Methodology

Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay

Performed

Sun-Sat

Reported

1-2 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Multiple patient encounters should be avoided.

Collect

Serum Separator Tube (SST). Multiple specimen tubes should be avoided.

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection. Transfer 4 mL serum to an ARUP Standard Transport Tube. (Min: 1.8 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Hemolyzed, icteric, or lipemic specimens.

Remarks
Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval

Panel includes: Trees: Box Elder, Birch, Mountain Cedar, Oak, White Ash, Cottonwood, Elm, Willow, Sycamore, Walnut, Mesquite, White Mulberry. Grasses and Shrubs: Timothy, Johnson, Bermuda, Cocklebur, Lambs Quarters, Pigweed, Sheep Sorrel, Sagebrush, English Plantain. Western Ragweed, Marsh Elder, Scale, Kochia/Firebush, Russian Thistle, Alfalfa.
Mites: Dermatophagoides farina (DF), D. pteronissimus (DPTER).
Molds: Alternaria alt, Hormodendrum, Aspergillus fumigatus, Penicillium chrysogenum (aka P. notatum).
Animals: Cat Dander, Dog Dander, Horse Hair/Dander, Feather Mix

Reporting Range
(reported in kU/L)
Probability of IgE Mediated Clinical Reaction Class Scoring
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

Test Number
Components
Reference Interval
0050345 Immunoglobulin E Effective November 17, 2014
Age
Reference Interval
0-5 months 13 kU/L or less
6-12 months 34 kU/L or less
1-2 years 97 kU/L or less
3 years 199 kU/L or less
4-6 years 307 kU/L or less
7-8 years 403 kU/L or less
9-12 years 696 kU/L or less
13-15 years 629 kU/L or less
16-17 years 537 kU/L or less
18 years and older 214 kU/L or less

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.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Analyte Specific Reagent (ASR)

Note
Hotline History
N/A
CPT Codes

86003 x36; 86005; 82785

Components
Component Test Code* Component Chart Name LOINC
0050345 Immunoglobulin E 19113-0
0050910 Allergen, Weed, Marsh Elder IgE 6232-3
0055001 Allergen, Fungi/Mold, A. alternata IgE 6020-2
0055003 Allergen, Tree, Box Elder/Maple Tree IgE 7155-5
0055006 Allergen, Animal, Cat Dander IgE 6833-8
0055007 Allergen, Tree, Mountain Cedar Tree IgE 6178-8
0055010 Allergen, Tree, Cottonwood Tree IgE 6090-5
0055018 Allergen, Weed, Kochia/Firebush IgE 6118-4
0055025 Allergen, Weed, Pigweed IgE 7604-2
0055027 Allergen, Weed, Russian Thistle IgE 6234-9
0055029 Allergen, Weed, Sagebrush/Wormwood IgE 6286-9
0055032 Allergen, Grass, Timothy Grass IgE 6265-3
0055035 Allergen, Weed, Western Ragweed IgE 6275-2
0055037 Allergen, Animal, Feather Mix IgE 31161-3
0055038 Allergen, Fungi/Mold, Hormodendrum IgE 6075-6
0055042 Allergen, Tree, Elm Tree IgE 6109-3
0055045 Allergen, Tree, Oak Tree IgE 6189-5
0055047 Allergen, Grass, Johnson Grass IgE 6152-3
0055049 Allergen, Weed, English Plantain IgE 6110-1
0055058 Allergen, Tree, Birch Tree IgE 15283-5
0055059 Allergen, Animal, Horse Hair/Dander IgE 30088-9
0055061 Allergen, Fungi/Mold, A. fumigatus IgE 6025-1
0055063 Allergen, Mites, D. pteronyssinus IgE 6096-2
0055064 Allergen, Mites, D. farinae IgE 6095-4
0055070 Allergen, Grass, Bermuda Grass IgE 6041-8
0055073 Allergen, Tree, White Ash Tree IgE 6278-6
0055080 Allergen, Fungi/Mold, P. notatum IgE 6212-5
0055083 Allergen, Tree, Willow Tree IgE 6285-1
0055090 Allergen, Tree, Sycamore Tree IgE 15285-0
0055093 Allergen, Tree, Walnut Tree IgE 33982-0
0055140 Allergen, Tree, Mesquite Tree IgE 6173-9
0055160 Allergen, Weed, Lambs Quarters IgE 6156-4
0099472 Allergen, Weed, Cocklebur IgE 6077-2
0099553 Allergen, Weed, Scale IgE 6239-8
0099554 Allergen, Tree, White Mulberry Tree IgE 6281-0
0099568 Allergen, Animal, Dog Dander IgE 6098-8
0099785 Allergen, Weed, Sheep Sorrel IgE 6244-8
0099901 Allergen, Grass, Alfalfa IgE 7065-6
* 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.
Aliases
Allergen, Inhalants, IHC Western Allergy Panel