Ferret Epithelium (e217) IgE - This test measures your body's allergic reaction to ferret epithelium by checking the levels of IgE antibodiesin serum, helping to identify allergic reactions to those specific proteins. It's particularly useful for individuals who may be experiencing environmental allergies, helping to confirm the cause of symptoms. It is intended to be used in conjunction with other clinical information to aid in the diagnosis of allergic diseases.