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HelpTest Code MUXF3 MUXF3 (Cross-reactive Carbohydrate Determinant), IgE, 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: 0.5 mL for every 5 allergens requested
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Forms
If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.
Useful For
Evaluation for the presence of antibodies to cross-reactive carbohydrate determinates (CCD)
Investigation of clinically unexpected positive IgE antibody testing in a wide variety of plant and invertebrate allergens
Special Instructions
Method Name
Fluorescence Enzyme Immunoassay (FEIA)
Reporting Name
MUXF3 (CCD), IgE, SSpecimen Type
SerumSpecimen Minimum Volume
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 | ||
| Ambient | 7 days |
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 |
Concentrations of 0.70 kU/L or more (class 2 and above) will flag as abnormally high.
Reference values apply to all ages.
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
86008
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| MUXF3 | MUXF3 (CCD), IgE, S | 58984-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| MUXF3 | MUXF3 (CCD), IgE, S | 58984-6 |
Day(s) Performed
Monday through Friday