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Test Code Ind Agn Scr Individual Allergen Screen

Useful For

For use as an aid in the clinical diagnosis of IgE mediated allergic disorders in conjunction with other clinical findings. Defining the allergen responsible for eliciting signs and symptoms of allergic disease and/or anaphylactic episode. To confirm sensitization prior to beginning immunotherapy.

Patient Preparation

For use as an aid in the clinical diagnosis of IgE mediated allergic disorders in conjunction with other clinical findings. Defining the allergen responsible for eliciting signs and symptoms of allergic disease and/or anaphylactic episode. To confirm sensitization prior to beginning immunotherapy.

Collection Method

Venous collection

Minimum Volume

1 mL per allergen

Container

Gold Top Serum Separator

Preferred Specimen

Serum

Acceptable Specimens

Serum:

  • Gold Top SST

  • Red Top

Reference or Target Ranges

  • <0.1 – Class O – Absent
  • 0.10 – 0.34 – Class 0/1 – for specialist use only, clinical relevance undetermined
  • 0.35 – 0.69 – Class 1 – Low
  • 0.70 – 3.49 – Class 2 – Medium
  • 3.5 – 17.49 – Class 3 – High
  • 17.5 – 49.99 – Class 4 – Very high
  • 50 – 100 – Class 5 – Very high
  • >100 – Class 6 – Very high

Reportable Units

kUA/L (kilo unit of allergen-specific IgE per liter)

Critical Value

Not defined for this assay

Reasons for Rejection

Hemolysis Threshold
 N/A
Icterus Threshold
 N/A
Lipemia Threshold
 N/A
Other
 QNS, contaminated, improperly labled, improper specimen type.

Specimen Stability

Ambient
 N/A
Refrigerated (2°C to 8°C)
 7 Days
Frozen(<-20°C to 0°C)
 Indefinite

Performance Information

Days and Time Performed
 Monday – Friday 8 AM – 4:30 PM
Expected Turn Around Time
 Within 3 days of arrival in lab
Stat Availabilty
 No
Performing Bench
 Special Chemistry
Methodology/Method Description
 ImmunoCap 250 – Enzyme linked immunoassay (ELIA)

Reflex Testing

Component testing may be available for allergens giving a positive result.

Additional Information/Important Notes

One Individual Allergen Screen order allows for testing of up to 30 individual allergens.
A Total IgE is automatically added at in lab status.

CPT Codes

86003 x # of allergens, IgE 82785