Dog Dander (e5) IgE with Reflex to Component Panel
Also known as: BRACA
Use
This test screens for immunoglobulin E (IgE) antibodies in blood against whole dog dander (e5). A positive result reflexively leads to component testing for specific dog allergens (Can f 1, Can f 2, Can f 4 — saliva allergens; Can f 5 — male dog urine allergen; and Can f 3 / Can f 6 — cross‑reactive allergens). It aids in assessing sensitization to general dog dander and component-level reactivity, which can help inform allergy diagnosis and potential reactivity to male versus female dogs or cross-reactive allergens.
Special Instructions
Reflex to component testing occurs automatically following a positive whole-dander IgE (e5) result. No special preparation is required for the blood draw. This test can be performed through patient-initiated purchase (e.g., via questhealth.com) and collected at Quest Diagnostics locations or via Quest Mobile where available.
Limitations
A positive IgE result suggests sensitization but does not confirm clinical allergy or reaction severity. Blood-based IgE results may not correspond with skin-prick test outcomes. Component testing is only performed if the whole dog dander (e5) IgE is positive. Interpretation should be made in conjunction with clinical history.
Methodology
Immunoassay
Biomarkers
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided