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26774 Hazelnut-Tree, IgE, Serum (HAZ)

Hazelnut-Tree, IgE, Serum (HAZ)
Test Code: ALHZTSO
Synonyms/Keywords

​Corylus avellan​​

Useful For

Establishing a diagnosis of an allergy to hazelnut-tree

Defining the allergen responsible for eliciting signs and symptoms

Identifying allergens:
-Responsible for allergic response 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.

Specimen Requirements
Specimen Type
Preferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)		Pediatric Minimum Volume
(no repeat)
​Serum
​Serum Separator Tube (SST)
​Red Top Tube (RTT)
​0.5 mL
​0.3 mL
​0.3 mL
Collection Processing Instructions

For 1 allergen: 0.3 mL

For more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL deadspace

Centrifuge and aliquot serum into plastic vial​

Specimen Stability Information
Specimen Type
TemperatureTime
​Serum
​Refrigerated (preferred)
​14 days
​
​Frozen
​90 days
Rejection Criteria

​None specified

Performing Laboratory Information
Performing Location
Day(s) Test PerformedAnalytical TimeMethodology/Instrumentation
​Mayo Clinic Laboratories
​Monday - Friday
​​1 to 3 days
​ImmunoCAP
Reference Lab
Mayo Clinic Laboratories
Reference Range Information

ClassIgE kU/LInterpretation
0<0.10Negative
0/10.10-0.34Borderline/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


Outreach CPTs
CPT

Modifier
(if needed)		QuantityDescriptionComments
​86003
​​1​
​​
Synonyms/Keywords

​Corylus avellan​​

Ordering Applications
Ordering ApplicationDescription
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type
Preferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)		Pediatric Minimum Volume
(no repeat)
​Serum
​Serum Separator Tube (SST)
​Red Top Tube (RTT)
​0.5 mL
​0.3 mL
​0.3 mL
Collection Processing

For 1 allergen: 0.3 mL

For more than 1 allergen: (0.05 mL x number of allergens) + 0.25 mL deadspace

Centrifuge and aliquot serum into plastic vial​

Specimen Stability Information
Specimen Type
TemperatureTime
​Serum
​Refrigerated (preferred)
​14 days
​
​Frozen
​90 days
Rejection Criteria

​None specified

Useful For

Establishing a diagnosis of an allergy to hazelnut-tree

Defining the allergen responsible for eliciting signs and symptoms

Identifying allergens:
-Responsible for allergic response 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.

Reference Range Information

ClassIgE kU/LInterpretation
0<0.10Negative
0/10.10-0.34Borderline/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


For more information visit:
Performing Laboratory Information
Performing Location
Day(s) Test PerformedAnalytical TimeMethodology/Instrumentation
​Mayo Clinic Laboratories
​Monday - Friday
​​1 to 3 days
​ImmunoCAP
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT

Modifier
(if needed)		QuantityDescriptionComments
​86003
​​1​
​​
For most current information refer to the Marshfield Laboratory online reference manual.