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Allergen, Food, Walnut (Juglans spp.) With Reflex to Components, IgE

WALNUT R
Example Reports
High
Normal

Ordering Recommendation

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Multiple patient encounters should be avoided.

Collect

Serum separator tube.

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP standard transport tube. (Min: 0.35 mL). For multiple allergen orders refer to "Allergen Specimen Collection Instructions" at www.aruplab.com/testing/resources/specimen.

Storage/Transport Temperature

Refrigerated

Unacceptable Conditions

Postmortem samples

Remarks
Stability

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

Methodology

Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay

Performed

Sun-Sat

Reported

1-3 days

Reference Interval

Test Number
 Components
 Reference Interval
  Allergen, Food, Walnut (Juglans spp) IgE Less than or equal to 0.34 kU/L

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.


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

Compliance Category

FDA

Note

This assay will initially test walnut whole allergen. If the walnut whole allergen result is greater than or equal to 0.1 kU/L, walnut components rJug r 1 and rJug r 3 will be ordered. Additional charges apply.

Hotline History

View Hotline History

 

Hotline History

Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
08/12/2024
X
N/A

CPT Codes

86003; if reflexed order 86008x2

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Components

Component Test Code* Component Chart Name LOINC
0055209 Allergen, Food, Walnut (Juglans spp) IgE 6273-7
* 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, Food, Walnut (Juglans spp.) With Reflex to Components, IgE