Sign in →

Test Code MACA Macadamia Nut, IgE, Serum

Additional Codes

MAYO: MACNT

EPIC: LAB1611


Advisory 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: 0.5 mL for every 5 allergens requested


Secondary ID

65405

Useful For

Establishing the diagnosis of an allergy to macadamia nut

 

Defining the allergen responsible for eliciting signs and symptoms 

 

Identifying allergens:

- Responsible for allergic disease and/or anaphylactic episode

- To confirm sensitization prior to beginning immunotherapy

- To investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens

 

Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or in patients in whom the medical management does not depend upon identification of allergen specificity.

Method Name

Fluorescence Enzyme Immunoassay (FEIA)

Reporting Name

Macadamia Nut, IgE

Specimen Type

Serum

Specimen Minimum Volume

For 1 allergen: 0.3 mL
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.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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