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25674 Allergen, Avocado, IgE (AVOC)

Allergen, Avocado, IgE (AVOC)
Test Code: ALAVOSO
Synonyms/Keywords

​Persea americana

Varieties: Guatemalan: Persea nubigena var guatamalensis L.Wms Mexican: P. Americana var. drymifolia Blake West Indian: P. Americana Mill var. Americana(P. gratissima Gaertn)

Test Components
​IgE, Avocado
Useful For

Establishing a diagnosis of an allergy to avocados

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 aller

Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​No ​Serum Serum Separator Tube (SST)
 Red Top Tube (RTT) 0.5 mL for every 5 allergens requested

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 ​ Refrigerated (preferred) ​14 days
​Frozen ​90 days
Performing Laboratory Information
Performing Location Day(s) Test Performed Report Available Methodology/Instrumentation
​Mayo Clinic Laboratories ​Monday through Friday 1 to ​3 days ​Fluorescence Enzyme Immunoassay (FEIA)
Reference Lab
Mayo Clinic Laboratories
Reference Range Information

Performing LocationReference Range












​Mayo Clinic Laboratories
ClassIgE kU/LInterpretation
0<0.10Negative
0/1 0.10-0.34Borderline/equivocal
10.35-0.69Equivocal
20.70-3.49Positive
33.50-17.4Positive
417.5-49.9Strongly positive
550.0-99.9Strongly positive
6> or =100Strongly positive

Reference values apply to all ages.


Interpretation

Detection of IgE antibodies in serum (Class 1 or greater) indicates an increased likelihood of allergic disease as opposed to other etiologies and defines the allergens that may be responsible for eliciting signs and symptoms.

The level of IgE antibodies in serum varies directly with the concentration of IgE antibodies expressed as a class score or kU/L.

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86003​ ​ ​1 ​
Synonyms/Keywords

​Persea americana

Varieties: Guatemalan: Persea nubigena var guatamalensis L.Wms Mexican: P. Americana var. drymifolia Blake West Indian: P. Americana Mill var. Americana(P. gratissima Gaertn)

Test Components
​IgE, Avocado
Ordering Applications
Ordering Application Description
​COM​Allergen, Avocado, IgE (AVOC)
​Cerner​Allergen, Avocado, IgE (AVOC)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​No ​Serum Serum Separator Tube (SST)
 Red Top Tube (RTT) 0.5 mL for every 5 allergens requested

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 ​ Refrigerated (preferred) ​14 days
​Frozen ​90 days
Useful For

Establishing a diagnosis of an allergy to avocados

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 aller

Test Components
​IgE, Avocado
Reference Range Information

Performing LocationReference Range












​Mayo Clinic Laboratories
ClassIgE kU/LInterpretation
0<0.10Negative
0/1 0.10-0.34Borderline/equivocal
10.35-0.69Equivocal
20.70-3.49Positive
33.50-17.4Positive
417.5-49.9Strongly positive
550.0-99.9Strongly positive
6> or =100Strongly positive

Reference values apply to all ages.


Interpretation

Detection of IgE antibodies in serum (Class 1 or greater) indicates an increased likelihood of allergic disease as opposed to other etiologies and defines the allergens that may be responsible for eliciting signs and symptoms.

The level of IgE antibodies in serum varies directly with the concentration of IgE antibodies expressed as a class score or kU/L.

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Report Available Methodology/Instrumentation
​Mayo Clinic Laboratories ​Monday through Friday 1 to ​3 days ​Fluorescence Enzyme Immunoassay (FEIA)
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86003​ ​ ​1 ​
For most current information refer to the Marshfield Laboratory online reference manual.