Test/Investigation
Specific IgE
Site(s) or Laboratory offering Test/Investigation
NNUH
Units
KUA/L
Also Known as/Frequency of Test
RAST; Allergen Testing; SIgE
Indications
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.
Comments/Precautions
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
Serum
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)