Galactose-Alpha-1,3-Galactose (Alpha-Gal) IgE:
Fasting Required: No
Lab: Quest Diagnostics
Specimen: Blood
Results: Average processing time 3-5 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Description: 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.
Alternate Name(s): Galili antigen, Alpha-Gal