Allergen: Baker's Yeast or Brewer's Yeast, IgE


Sunquest Code:AYST  
Epic Code:LAB4296Epic Name:Allergen Brewers yeast IgE
Synonyms:Saccharomyces Cerevisiae
Methodology:ImmunoCAP, fluorescent enzyme immunoassay
CPT Code:86003
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-2 days.


Collection Instructions

Specimen:Blood
Optimal Volume:0.7 mL; add 0.4 mL for each additional allergen
Container:Red or gold (gel) (Red (no gel))
Causes for Rejection:Hemolyzed, icteric or lipemic specimens.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot ASAP 0.25 mL. Add 0.1 mL for each additional allergen. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:55079


Interpretive

Reference Range:
Less than 0.10 kU(a)/L None Detected
0.10-0.69 kU(a)/L Low
0.70-3.49 kU(a)/L Moderate
3.50-17.50 kU(a)/L High
Greater than 17.51 kU(a)/L Very High
   
Use:Allergen results of 0.10-0.34 kU/L are intended for specialist use as the clinical relevance is determined. Although increasing ranges are reflective of increasing concentrations of allergen-specific IgE, this may not correlate with the degree of clinical response or skin testing when challenged with a specific allergen. 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 a clinical allergy or even anaphylaxis.


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