shellfish allergy iodine

Dizziness, lightheadedness or faintingAllergies can cause a severe, potentially life-threatening reaction known as anaphylaxis. If your iodine allergy is not severe, it may be possible to eat small amounts of iodized salt without adverse symptoms. While shellfish allergy is a very real allergy and potentially life threatening, it is not an iodine allergy. Ask your doctor to speak to the radiologist prior to scheduling the procedure and explain your fears. A person with a shellfish allergy is not any more likely to react to the iodine used in medical practices than anyone else. Discover treatment options and avoidance tips through ACAAI. The study enrolled 60 subjects with a confirmed shellfish allergy. The allergens from fish and shellfish are actually 2 different types of proteins, and have absolutely nothing to do with iodine. If you are allergic to shellfish, specific proteins found in these foods are the allergens, not iodine. Fish and shellfish contain iodine, and allergic reactions to seafood are quite common, with a prevalence ranging anywhere between 2% and 6% of the population. If you are allergic to shellfish, specific proteins found in these foods are the allergens, not iodine. In the cases where these patients need CT scans with contrast performed, we are often told by radiology (or by the patient) that they cannot get contrast because of their allergy. For your shellfish allergy, you should always carry a prescription epinephrine self-injector, and be comfortable with using this in the event of a reaction. When asked the source of the shellfish allergy, 92% answered “iodine.”(3), The College of Allergy, Asthma, And Immunology addresses the iodine myth on its website: “Years ago doctors believed that shellfish allergy stemmed from increased amounts of iodine present in the shellfish, so patients with a shellfish allergy were told to avoid iodine. Discover treatment options and avoidance tips through ACAAI. But iodine is not what triggers the reaction in people who are allergic to shellfish. material or iodine. When you buy scampi, always check to see if the company has used other shellfish, such as prawn. For example, food-borne illness caused by fish and shellfish may be due to allergy, transmittal of infection, or the presence of toxins. Shellfish or iodine allergy is not a contraindication to use of IV contrast and does not mandate a pretreatment regimen. Your allergist will be able to tell you specifically! M.D., M.P.H., Journal of the American Medical Association, Prevalence and Severity of Food Allergies, https://jamanetwork.com/(2) Faber, M.A. I have always been told that due to my severe reaction to shellfish I was also allergic to iodine. Iodine is frequently used in medications and on the other hand agents used in medical imaging. If you are allergic to iodine, you may wish to avoid adding iodized salt to your foods. Learn the signs and symptoms of mold allergy. It is safe for most people with food allergies. If you develop a rash, hives or difficulty breathing after taking certain medications, you may have a drug allergy. The myth lingers and continues to have an impact on patients and their healthcare, as iodine is a component in intravenous dye which is widely used for radiological procedures. If your doctor believes you need this procedure to make a definitive diagnosis, you should undergo the procedure. (2) It’s a myth that people allergic to shellfish are allergic to iodine, according to the American Academy of Allergy, Asthma, and Immunology. Is there a connection between shellfish allergy and iodine? Our COVID-19 page has information for people with allergies and asthma! Discover treatment options through ACAAI. Furthermore, iodine dietary supplements are minerals, similar to minerals like potassium, magnesium, calcium, zinc and selenium. There is about a three … For those affected, even a small bite of shrimp, lobster, or crab, can result in reactions from itching and hives to anaphylaxis.(1). I recently evaluated a 33 year old woman who is 31 weeks pregnant with a concern of "iodine" allergy. These different mechanisms are of largely academic interest to the radiologist, because they may not be distinguishable in a patient with a history of illness after seafood ingestion. I have a shellfish allergy but am not allergic to iodine. No data suggest that shellfish allergies predict increased risk of adverse reactions to contrast. Shellfish allergy is sometimes confused with iodine allergy because shellfish is known to contain the element iodine. If you sneeze a lot, if your nose is often runny or stuffy, or if your eyes, mouth or skin often feels itchy, you may have allergic rhinitis. The primary allergen in shellfish that stimulates allergic reactions is tropomyosin. 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