IgE is an antibody and is produced by the immune system to
fight foreign bodies such as infections.In allergic individuals IgE is misdirected to fight harmless
substances like pollens or house dust mite particles etc. The total IgE blood test is a diagnostic
tool used to measure the overall level of immunoglobulin E (IgE) in the blood. Elevated total IgE
levels can broadly indicate allergic potentials, such as asthma, hay fever, or food allergies.