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Test Code Lab4232 Egg White Component Profile, Serum

Additional Codes

Mayo Code = EGWTP


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

Method Name

Fluorescence Enzyme Immunoassay (FEIA)

Reporting Name

Egg White Component Profile, S

Specimen Type

Serum

Specimen 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

Monday through Friday

Report Available

Same day/1 to 3 days

Performing 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.