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HelpTest Code PEANT Peanut, IgE with Reflex to Peanut Components, IgE, Serum
Secondary ID
64756Useful For
Evaluation of patients with suspected peanut allergy
Evaluation of patients with possible peanut cross-reactivity
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| PNTCP | Peanut Components, IgE, S | No | No |
Testing Algorithm
Testing begins with analysis of peanut IgE. If peanut IgE is negative (<0.10 kU/L), testing is complete.
If peanut IgE is ≥0.10 kU/L, then 7 peanut components (Ara h 2, Ara h 1, Ara h 3, Ara h 6, Ara h 8, Ara h 9, and profilin Bet v2) are performed at an additional charge.
Method Name
Fluorescent Enzyme Immunoassay (FEIA)
Reporting Name
Peanut Component Reflex, SSpecimen Type
SerumAdvisory Information
For a listing of allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies in Special Instructions
Specimen Required
Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 2 mL
Specimen Minimum Volume
1.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 90 days | ||
| Ambient | 7 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 |
Concentrations ≥0.70 kU/L (Class 2 and above) will flag as abnormally high.
Day(s) and Time(s) Performed
Monday through Friday; 9 a.m.-8 p.m.
Saturday; 8 a.m.-3 p.m.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved or is exempt by the U.S. 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
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PEANT | Peanut Component Reflex, S | 6206-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| PNUT | Peanut, IgE, S | 6206-7 |
Forms
If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.