Rat Allergy Blood Test in Idaho

What this test measures

Rat epithelium extracts contain proteins shed from skin and tissue. When these proteins are inhaled, a sensitized immune system can respond with sneezing, nasal congestion, itchy eyes, or asthma-like symptoms. The test measures circulating IgE that recognizes the epithelium extract, which helps identify whether rat exposure is a plausible contributor to those symptoms.

A single blood draw is all that is required, so no skin prick testing or direct contact with the allergen is needed. Results are typically reported as a quantitative antibody level in kilounits per liter with a corresponding class. A broader rodent or inhalant panel may be ordered at the same time to check for reactions to mice, hamsters, guinea pigs, or common aeroallergens.

Laboratory technicians, animal facility staff, pet owners, and hobbyists are among those who may seek this test. It is also useful when symptoms appear or worsen around cages, bedding, or confined animal rooms. Interpretation should consider the degree of exposure, the timing of symptoms, and other allergy results.