Test Code Billings Clinic: 2235 Mayo: MACNT Macadamia Nut, IgE, Serum
Performing Laboratory

Useful For
Testing for IgE antibodies may be useful to establish the diagnosis of an allergic disease and to define the allergens responsible for eliciting signs and symptoms
Testing also may be useful to identify allergens that may be responsible for allergic disease or an anaphylactic episode, to confirm sensitization to particular allergens prior to beginning immunotherapy, and to investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens
Method Name
Fluorescence Enzyme Immunoassay (FEIA)
Specimen Required
Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 0.5 mL for each 5 allergens requested
Additional Information: Designate specific allergens from the list in Allergens – Immunoglobulin E (IgE) Antibodies in Special Instructions.
Reporting Name
Macadamia Nut, IgESpecimen 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 dead space
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 |
Reference Values
Class |
IgE kU/L |
Interpretation |
0 |
<0.35 |
Negative |
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) and Time(s) Performed
Monday through Friday; 9 a.m.-8 p.m., Saturday; 8 a.m.-3 p.m.
Test Classification
This test was developed using an analyte specific reagent. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
86003
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
MACNT | Macadamia Nut, IgE | 11183-1 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
MACNT | Macadamia Nut, IgE | 11183-1 |
Forms
If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.