Specimen Collection Manual and Test Catalog

0.7 mL serum

Allow to clot. Centrifuge and submit one (1) full 3.5 mL gold-top serum-separator tube. Aliquot also acceptable (0.7 mL minimum).

Refrigerated

Stable seven (7) days at 2-8°C or six (6) months at -20°C.

<0.10 kUa/L - Class 0 Allergen: Absence of Allergen Specific IgE 
0.10-0.34 kUa/L - Class 0/1 Allergen: Low Level of Allergen Specific IgE 
0.35-0.69 kUa/L - Class 1 Allergen: Low Level of Allergen Specific IgE 
0.70-3.49 kUa/L - Class 2 Allergen: Moderate Level of Allergen Specific IgE 
3.50-17.49 kUa/L - Class 3 Allergen: High Level of Allergen Specific IgE 
17.5-49.99 kUa/L - Class 4 Allergen: Very High Level of Allergen Specific IgE
50.0-99.99 kUa/L - Class 5 Allergen: Very High Level of Allergen Specific IgE
>=100 kUa/L - Class 6 Allergen: Very High Level of Allergen Specific IgE

Alpha-Gal

The Galactose-alpha-1,3 galactose (Alpha-Gal) IgE test more specifically defines the etiology of allergic responses to meat allergens in patients with a delayed onset of symptoms (3 to 6 hours after meal). IgE to Alpha-Gal is the likely cause of anaphylactic reactions in individuals who develop hypersensitivities to beef, pork and/or lamb as adults.