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Walnut (f256) IgE with Reflex to Component Panel (WALWR)
Test CodeLAB3315
Quest Code
94467
CPT Codes
86003
Includes
If Walnut (f256) IgE is ≥0.10 kU/L, then Walnut Component Panel will be performed at an additional charge (CPT code(s): 86008 x2).
Walnut Component Panel includes rJug r1 (f441) and rJug r3 (f442).
Walnut Component Panel includes rJug r1 (f441) and rJug r3 (f442).
Preferred Specimen
1 mL serum in gold top tube
Minimum Volume
0.5 mL
Transport Container
Serum separator tube (SST)
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Immunoassay (IA)
FDA Status
Setup Schedule
Day shift Mon-Fri
Report Available
3 days
Reference Range
See Laboratory Report
Clinical Significance
This test measures specific IgE antibodies to walnuts with reflex to a walnut component panel if the IgE result is positive. Allergen-specific serum IgE testing is considered comparable to skin testing and may be preferred in some clinical situations. However, a positive test result only indicates that a patient is sensitized to the allergen of concern. Many IgE-sensitized individuals do not develop any symptoms when exposed to the allergen. A diagnosis of allergy should only be made by a trained medical provider after conducting a thorough clinical evaluation [1].
More specific information about allergens included in this panel may be found on the Quest Diagnostics Test Directory.
Reference
1. Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(3 Suppl 3):S1-S148.
More specific information about allergens included in this panel may be found on the Quest Diagnostics Test Directory.
Reference
1. Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(3 Suppl 3):S1-S148.
Performing Laboratory
Quest Diagnostics - South Region |