Lab test

Halibut Allergy Test - Fish Allergies

A halibut allergy test uses a blood sample to measure allergen-specific IgE antibodies against halibut proteins.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A halibut allergy test uses a blood sample to measure allergen-specific IgE antibodies against halibut proteins. Halibut is a commonly eaten flatfish, and fish allergy is frequently associated with a muscle protein called parvalbumin that is shared across many species. The test is a screening tool for suspected fish allergy rather than a diagnosis on its own. A provider may order it after a reaction to halibut or other fish, or as part of a broader fish and shellfish allergy panel. Results are interpreted with symptoms and medical history.

• Halibut-specific IgE Antibodies produced against halibut proteins; used to assess sensitization to halibut.

• People who develop hives, itching, or swelling after eating halibut or other fish
• Individuals with tingling or itching in the mouth after fish
• Those with digestive upset, vomiting, or diarrhea after fish
• People with eczema or skin reactions who suspect a fish trigger
• Anyone who has reacted to related fish species and needs testing

• No fasting is required for this IgE allergy test
• The blood sample can be collected at any time of day
• Tell the provider about all medications you take
• No special diet is needed beforehand

Results are reported as an IgE level or class for halibut. An elevated value may indicate sensitization, but sensitization does not always mean a person will react when eating halibut. A low or undetectable level makes a true halibut allergy less likely, though it does not rule out allergy to other fish. Because many fish share the parvalbumin protein, a provider may consider cross-reactivity across species. Discuss all results with a healthcare provider before changing your diet.

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