What is the purpose of this test?
Order a Tuna Allergy IgE Blood Test to measure the IgE antibody levels in the blood to help detect a food allergy to tuna. Tuna is the second most popular seafood, following shrimp. Because tuna is such a large fish, most individuals will never see one in its entirety. However, tuna is high in vital nutrients, including omega-3 fatty acids, iron, magnesium, potassium, and vitamins A, B6, and B12, and is suitable for overall health. Tuna is sold in cans or portioned into steaks and fillets, which can be purchased fresh or frozen. Due to its many health benefits, tuna is a prized ingredient in many products and recipes, such as casseroles, salads, and sandwiches. Unfortunately, many individuals with food allergies or hypersensitivity may experience an adverse reaction after consuming tuna.
What other seafood or products should I avoid if I have a tuna allergy?
Individuals should also note that there is allergic cross-reactivity between various types of fish, which means that individuals with allergies to one type of fish are likely to have or develop an allergy to other finned fish. This cross-reactivity is due to a protein found in many fish called parvalbumin. Therefore, individuals allergic to tuna are generally advised to avoid all finned fish, including salmon, cod, herring, swordfish, sole, snapper, and bass.
Additionally, individuals with an allergy to tuna should also avoid the following products:
- Imitation fish or shellfish
- Seafood stock (fish or shrimp)
- Fish oil, including some omega-3 supplements
- Seafood flavorings
- Frozen fish sticks or patties
- Bouillabaisse
- Salad dressing
- Certain meat dishes that contain seafood-based ingredients
- Surimi (minced fish paste)
- Worcestershire sauce and anything products that contain it, such as some barbeques sauces
What causes an allergic reaction to tuna?
An allergy to tuna triggers a reaction in an individual's immune system. This is because the body views certain substances as toxic and produces IgE antibodies to these contaminants. These antibodies cause histamine to be released, which will cause the symptoms of an allergic reaction.
When should I order a Tuna Allergy IgE Blood Test?
Individuals may order this Tuna Allergy IgE Blood Test if they have experienced symptoms related to a seafood allergy. Allergy symptoms vary depending on the individual, ranging from mild to severe reactions. Most food-related symptoms occur within two hours of ingestion; however, they frequently begin within minutes. In addition, the response can be delayed by four to six hours or even longer in some rare cases.
An allergic reaction may affect the skin, intestinal lining, and air pathways. Individuals with seafood allergies may experience one or more of the following symptoms:
- Tingling sensation near or around the mouth
- Swelling
- Abdominal discomfort
- Nausea or vomiting
- Diarrhea
- Itching or hives
- Congestion
- Difficulty breathing, swallowing, or wheezing
- Lightheadedness
An extreme, potentially life-threatening allergic reaction known as anaphylaxis may sometimes occur. An anaphylactic response requires immediate medical attention. Signs or symptoms of anaphylaxis may include:
- Rapid or increased heart rate
- Swollen throat or lump making it difficult to breathe
- Low blood pressure
- Extreme dizziness or loss of consciousness
