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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 |
|---|---|---|---|
| PNTCO | Peanut Components, S | No | No |
Testing Algorithm
Testing begins with analysis of peanut IgE. If peanut IgE is undetectable (<0.10 kU/L), testing is completed.
If peanut IgE is detectable (≥0.10 kU/L), then the 5 peanut components (Ara h 2, Ara h 1, Ara h 3, Ara h 8, and Ara h 9) are performed at an additional charge.
Method Name
Fluorescent Enzyme Immunoassay (FEIA)
Reporting Name
Peanut Component Reflex, SSpecimen Type
SerumSpecimen Required
Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 1.5 mL
Additional Information: Designate specific allergens from the list in Allergens-IgE Antibodies in Special Instructions.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 14 days |
| Frozen | 90 days |
Reject Due To
|
Hemolysis |
Mild OK; Gross OK |
|
Lipemia |
Mild OK; Gross OK |
|
Icterus |
NA |
|
Other |
NA |
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) 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 or approved 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 |