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23424 Allergen, Macadamia Nut IgE (MACNT)

Allergen, Macadamia Nut IgE (MACNT)
Test Code: ALMACSO
Synonyms/Keywords
​Macadamia ternifolia
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.

Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Serum ​Red Top Tube (RTT) ​Serum Separator Tube (SST) ​0.5 mL for each 5 allergens submitted 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
​Serum ​ ​
​Refrigerate (preferred) ​14 days
​Frozen ​90 days
Interference
False-positive results for IgE antibodies may occur in patients with markedly elevated serum IgE (>2.500 kU/L) due to nonspecific binding to allergen solid phases.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Mayo Medical Laboratories ​Monday through Saturday ​Same day/1 day ​Fluorescence Enzyme Immunoassay (FEIA)
Reference Lab
Mayo Clinic Laboratories
Reference Range Information
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
Positve
4
17.5 -  49.9
Strongly positive
5
50.0 – 99.9
Strongly positive
6
> or = 100
Strongly positive
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​86003 ​ ​ ​ ​
Synonyms/Keywords
​Macadamia ternifolia
Ordering Applications
Ordering Application Description
​Centricity ​Allergen, Macadamia Nut IgE
​Cerner ​None
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Serum ​Red Top Tube (RTT) ​Serum Separator Tube (SST) ​0.5 mL for each 5 allergens submitted 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
​Serum ​ ​
​Refrigerate (preferred) ​14 days
​Frozen ​90 days
Interference
False-positive results for IgE antibodies may occur in patients with markedly elevated serum IgE (>2.500 kU/L) due to nonspecific binding to allergen solid phases.
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.

Reference Range Information
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
Positve
4
17.5 -  49.9
Strongly positive
5
50.0 – 99.9
Strongly positive
6
> or = 100
Strongly positive
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Mayo Medical Laboratories ​Monday through Saturday ​Same day/1 day ​Fluorescence Enzyme Immunoassay (FEIA)
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​86003 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.