Assay

Immunoglobulin E (total)

Key Words

 Total IgE, IgE

 Specimen Collection

Serum (brown)

Turnaround time

7 days

Test indications

Serum lgE may be helpful in the confirmation of atopic diseases however the normal range is very wide and levels do not correlate well with symptoms. A high level of specific IgE to a single allergen may be seen with a normal level lgE. Very high levels of lgE are seen both in atopic eczema and in parasitic infestations and also in the rare hyper-IgE syndrome. IgE myeloma is a very rare condition. Total IgE is useful in monitoring allergic bronchopulmonary aspergillosis and Churg Strauss syndrome.

Methodology

Enzyme immunoassay

Interferences

No known methodological interferences

Reference Range

 0-100 KUa/L in ages >10 years old

Analytical error

Contact Immunology laboratory (x8454)

Reference change value

N/A