Specific IgE


Specific IgE

Site(s) or Laboratory offering Test/Investigation




Also Known as/Frequency of Test

RAST; Allergen Testing; SIgE


Atopic individuals generate specific IgE to many different compounds, some will experience Type 1 hypersensitivity reactions on exposure and are considered to be allergic, others remain asymptomatic and are termed sensitised but not allergic. In the absence of a strong clinical history, specific IgE analysis is of little significance. NB a negative result does not exclude allergy.


We run panels of antigens to common food groups and aeroallergens, we have individual test for common allergens. Blanket requests for 'RAST testing' will only have total IgE measured.

Sample type


Turnaround times (TAT) Urgent/Routine/GP or OPD

2 working days

Reference intervals (adult unless stated)

<0.35 KUA/L

If UKAS Accredited Test indicate at which site

Y NNUH (see UKAS schedule for included tests)