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HelpTest Code EGWTP Egg White Component Profile, Serum
Ordering Guidance
For a listing of allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.75 mL; if needed, 0.5 mL for every 5 allergens requested
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Useful For
Identifying egg white allergens:
-Responsible for allergic disease and/or anaphylactic episode
-To confirm sensitization prior to beginning immunotherapy
This test is not useful for patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or for patients in whom the medical management does not depend upon identification of allergen specificity.
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| EGG | Egg White, IgE | Yes | Yes |
| OVAL | Ovalbumin, IgE | Yes | Yes |
| OVMU | Ovomucoid, IgE | Yes | Yes |
Special Instructions
Method Name
Fluorescence Enzyme Immunoassay (FEIA)
Reporting Name
Egg White Component Profile, SSpecimen Type
SerumSpecimen Minimum Volume
0.4 mL
For 1 allergen: 0.3 mL
For more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL deadspace
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 90 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Reference Values
|
Class |
IgE kU/L |
Interpretation |
|
0 |
<0.10 |
Negative |
|
0/1 |
0.10-0.34 |
Borderline/equivocal |
|
1 |
0.35-0.69 |
Equivocal |
|
2 |
0.70-3.49 |
Positive |
|
3 |
3.50-17.4 |
Positive |
|
4 |
17.5-49.9 |
Strongly positive |
|
5 |
50.0-99.9 |
Strongly positive |
|
6 |
≥100 |
Strongly positive |
Reference values apply to all ages.
Day(s) Performed
Report Available
Same day/1 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
86003 x 1
86008 x 2
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| EGWTP | Egg White Component Profile, S | 104689-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| EGG | Egg White, IgE | 6106-9 |
| OVAL | Ovalbumin, IgE | 7556-4 |
| OVMU | Ovomucoid, IgE | 7557-2 |
Forms
If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.