Yale New Haven Hospital

Department of Laboratory Medicine
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Allergen, bean, green IgE

Lab Section: 

Immunology

 

Lab Location: 

Main Lab

Test ID: 

LAB1629

 

Methodology: 

Fluorescence Enzyme Immunoassay (FEIA)

Schedule: 

Monday-Friday

Reported: 

3 days

Specimen Requirements: 

Collection: 5.0 mL Blood in a Gold Top Tube.
Pediatric volume: 3 mL.
Handling: 1 - 30 Allergens draw 1 Gold Top Tube

31 - 60 Allergens draw 2 Gold Top Tubes

>60 Allergens draw 3 Gold Top Tubes.
Unacceptable conditions: Grossly hemolyzed specimens
Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 3 months
Unacceptable conditions: Grossly hemolyzed specimens
Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 3 months.

 

Notes: 

Clinical Indications: Testing for IgE antibodies may be useful to define the specific allergen responsible for disease and/or anaphylactic episode, to confirm sensitization to particular allergens prior to beginning immunotherapy. The correlation of allergy laboratory results with clinical history and in vivo reactivity to specific allergens is essential. A negative test may not rule out clinical allergy or even anaphylaxis.

Reference Interval: 

Reference Range for Allergen Specific IgE:
Conc. (kAU/L)   Class   IgE Level
  <0.35           0       Neg
  0.35-0.69       1       Low
  0.70-3.49       2       Moderate
  3.50-17.49      3       High
  17.5-49.99      4       Very High
  50.0-100        5       Very High
  >100            6       Very High

CPT Code(s): 

86003

Last Changed: 

01/04/2017 14:55:50

Last Reviewed: 

9/26/2017 12:24:26 PM