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Allergic Reaction to Barium Sulfate
Barium sulfate is opaque to X-rays, which means that X-rays don't pass through it 35. Doctors use barium sulfate to provide contrast in radiographic examinations of the gastrointestinal tract 35. Body structures containing barium sulfate stand out clearly on the X-ray film 35. Patients take barium sulfate orally when having an exam of the esophagus, stomach or small intestine 35. It is given rectally to examine the distal small intestine and colon. Although allergic reactions to barium sulfate are rare, they do occur, so understanding the risks involved will help you make a better decision about having this kind of examination 35.
Ingredients
Barium sulfate itself usually is not absorbed in the intestinal tract, but some of the additives to the barium sulfate solution are absorbed 35. Additives include ingredients used to suspend the barium sulfate in liquid, to improve the flavor and to make the texture more palatable 35. For instance, HD 85 is a raspberry-flavored barium sulfate mixture that contains suspending and dispersing agents, simethicone, potassium sorbate, sodium citrate, citric acid, artificial sweetener, other flavorings and water 35.
Allergic Reactions
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The "New England Journal of Medicine" in October 1997 reported the case of a 63-year-old woman who had a severe allergic reaction after an upper gastrointestinal examination with barium sulfate 135. Tests revealed that she was allergic to carboxymethylcellulose sodium, an ingredient in the barium sulfate used in the examination 135. According to the "Encyclopedia of Diagnostic Imaging," allergic reactions to barium sulfate are rare, occurring in about one patient out of 750,000 235. One of the ingredients implicated in allergic reactions is glucagon, which is used to reduce discomfort during barium sulfate examinations 35. The authors of the encyclopedia suggest that some allergic reactions may be due to the latex in medical gloves or enema balloons used in the examinations.
Risk-Benefit
You have a greater risk of an allergic reaction to the ingredients in barium sulfate if you have a history of asthma or allergies, such as hay fever, or you have had a reaction to barium sulfate or any of the other ingredients in the barium sulfate preparation 35. It's impossible to predict which patients will have an allergic reaction to a barium sulfate preparation, so doctors who administer these tests are prepared to deal with an allergic reaction 35.
Symptoms
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If you experience hives, itching, swelling of your throat or difficulty breathing or swallowing, rapid heart beat, agitation or confusion after a gastrointestinal exam with barium sulfate, you may be suffering an allergic reaction to something in the preparation 35. Tell your doctor immediately or go to the emergency room, as this can be a life-threatening condition.
Related Articles
References
- The New England Journal of Medicine: Anaphylaxis from the Carboxymethylcellulose Component of Barium Sulfate Suspension
- Encyclopedia of Diagnostic Imaging, Volume 1; Albert L. Baert
- Drugs.com: Barium Sulfate
- RadiologyInfo.org: Contrast Materials
- MedlinePlus: Barium Sulfate
- Radiology: Double-Contrast Barium Enema Examination Technique
- Kasper, Dennis L.., Anthony S. Fauci, and Stephen L.. Hauser. Harrison's Principles of Internal Medicine. New York: Mc Graw Hill education, 2015. Print.
- Kilcoyne, A., Kaplan, J., and M. Gee. Inflammatory Bowel Disease Imaging: Current Practice and Future Directions. World Journal of Gastroenterology. 2016. 22(3):917-32.
- Levine, M., and S. Rubesin. History and Evolution of the Barium Swallow for Evaluation of the Pharynx and Esophagus. Dyphagia. 2017. 32(1):55-72.
Writer Bio
Ramona French owned a massage school and taught massage for 28 years. In that time she wrote textbooks on Swedish, acupressure, deep tissue and lymph drainage massage. She is the author of "Introduction to Lymph Drainage Massage" and "Milady's Guide to Lymph Drainage Massage." Her book, "The Complete Guide to Lymph Drainage Massage," published by Milady, was released in October 2011.