RAST Allergy Blood Test
Why?
An allergic person’s immune system produces a special type of antibody, Immunoglobulin E (IgE), to combat each specific substance to which they have an abnormal sensitivity. The RAST stands for radioallergosorbent test, which is a laboratory measure of the amount of specific IgE antibodies present in the blood.
How?
Samples of your blood are drawn from your arm at the ENT Clinic and are sent to our laboratory for analysis. The results take a few days to process but will confirm whether or not your body reacts to any substances we have tested and will also be graded to indicate the severity of the reaction. These grades range from 0-6, with 0 indicating a negative response, grade 1 indicating sensitivity through to grade 6 indicating an extremely high sensitivity.
The private health insurances we work with
Harley Street ENT is recognised by a wide range of leading UK and international private health insurers, ensuring easy access to our care for patients with approved cover.
Need help and advice? Speak to an advisor
To discuss your needs in confidence or arrange a consultation, please contact our advisory team, who will be happy to assist you.