Allergen specific IgE (sIgE). Requests should be for specific allergens as indicated by the patients clinical history. Requests for ‘RAST’ will not be accepted. For rare specific IgE tests samples will be referred to Sheffield Protein Reference unit for testing, therefore please allow additional time for sample dispatch and return of results.
Tube
Serum Gel
ID
12788
Availability
Weekdays
Additional Information
The presence of significant levels of specific IgE antibodies to defined allergens in conjunction with a relevant clinical history is suggestive of IgE mediated allergy. However, the finding of a positive result does not indicate that any particular allergen is responsible for th patients symptoms. The significance of a result can only be interpreted in the context of a fully allergic history. More over, a negative result does not exclude the possibility of IgE involvement. In certain circumstances skin-prick testing may be necessary.
Turn Around
7 days
Send to
Leeds General Infirmary
Clinical Immunology
Old Medical School
Great George Street
Leeds
LS1 3EX
Collection Con
Samples less than 2ml of whole blood are unlikely to be sufficient for allergy testing.
Frequency
Daily
Sample REQ
Blood
Ref. Range (Male)
Grade 0 = <0.35 Grade 1 = 0.35 to 0.69 Grade 2 = 0.7 to 3.5 Grade 3 = 3.5 to 17.5 Grade 4 = >17.5
Ref. Range (Female)
Grade 0 = <0.35 Grade 1 = 0.35 to 0.69 Grade 2 = 0.7 to 3.5 Grade 3 = 3.5 to 17.5 Grade 4 = >17.5
Ref. Range (Paed)
Grade 0 = <0.35 Grade 1 = 0.35 to 0.69 Grade 2 = 0.7 to 3.5 Grade 3 = 3.5 to 17.5 Grade 4 = >17.5
Units
kua/L
IP Acute TAT
Contact Laboratory
IP Routine TAT
7 days
GP Acute TAT
Contact Laboratory
GP Routine TAT
7 days