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24771 Allergen, Red Dye, IgE (184110)

Allergen, Red Dye, IgE (184110)
Test Code: ALCARSO
Synonyms/Keywords
​Carmine/Red Dye-Cochineal (Dactylopius coccus), Red #4 
Useful For
​This assay is used to detect allergen specific-IgE using the ImmunoCAP® FEIA method. In vitro allergy testing is the primary testing mode for allergy diagnosis.
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) 0.5 mL ​340 uL
Collection Processing Instructions

​Ship at ambient or frozen temperature Monday through Friday. 

Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​ ​ ​Ambient ​4 weeks
​Refrigerated ​4 weeks
​Frozen ​>4 weeks
Rejection Criteria
Lipemia Reject
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Eurofins Viracor ​Monday through Friday ​1-2 days ​ImmunoCAP® FEIA
Reference Lab
Reference Range Information
Performing Location Reference Range
Eurofins Viracor
ClassIgE (kU/L)Comment
0<0.10Negative
0/10.10-0.34Equivocal/Borderline
10.35-0.69Low Positive
20.70-3.49Moderate Positive
33.50-17.49High Positive
417.50-49.99Very High Positive
550.00-99.99Very High Positive
6>99.99Very High Positive

Note that Viracor Eurofins includes an extra calibrator at 0.10 kU/L and uses it to
define an optional equivocal class.

Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​86003
Synonyms/Keywords
​Carmine/Red Dye-Cochineal (Dactylopius coccus), Red #4 
Ordering Applications
Ordering Application Description
​Centricity ​Allergen, Red Dye IgE
​Cerner ​None
​COM ​Allergen, Red Dye IgE
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) 0.5 mL ​340 uL
Collection Processing

​Ship at ambient or frozen temperature Monday through Friday. 

Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​ ​ ​Ambient ​4 weeks
​Refrigerated ​4 weeks
​Frozen ​>4 weeks
Rejection Criteria
Lipemia Reject
Useful For
​This assay is used to detect allergen specific-IgE using the ImmunoCAP® FEIA method. In vitro allergy testing is the primary testing mode for allergy diagnosis.
Reference Range Information
Performing Location Reference Range
Eurofins Viracor
ClassIgE (kU/L)Comment
0<0.10Negative
0/10.10-0.34Equivocal/Borderline
10.35-0.69Low Positive
20.70-3.49Moderate Positive
33.50-17.49High Positive
417.50-49.99Very High Positive
550.00-99.99Very High Positive
6>99.99Very High Positive

Note that Viracor Eurofins includes an extra calibrator at 0.10 kU/L and uses it to
define an optional equivocal class.

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Eurofins Viracor ​Monday through Friday ​1-2 days ​ImmunoCAP® FEIA
Reference Lab
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.