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Patient Preparation: No special preparation is required
Allergy blood tests are used to find out if you have an allergy. Total IgE test measures the overall number of IgE antibodies in your blood.
Your doctor will recommend this test if you have symptoms of:
Shortness of breath
An immunoglobulin E (IgE) test measures the blood level of IgE, one of the five subclasses of antibodies. IgE antibodies are found in the lungs, skin, and mucous membranes.
Sample: Serum (2 mL)