Gulf Flounder-Specific IgE Panel in Arizona

What this test measures

Fish allergy is usually driven by parvalbumin, a muscle protein found across many fish species. Gulf flounder is a flatfish commonly eaten in coastal cooking, and reactions to it can range from oral itching to hives, vomiting, or more serious symptoms. The test measures IgE antibodies directed against flounder proteins.

Only a serum sample from a routine blood draw is needed. The laboratory reports Gulf flounder-specific IgE, total IgE, and a semiquantitative class. Some panels add markers such as parvalbumin and related fish allergens to help a clinician assess whether reactions are likely to extend to other species.

Testing is typically requested after a clear reaction to flounder or another fish, or when a broader seafood allergy panel is being assembled. Because fish allergies tend to persist, the laboratory report is an important part of the information a healthcare provider uses for counseling.