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X-Ray and Allergy

You know that radiographic tests such as X-rays expose you to low levels of radiation. However, a lesser known health hazard also is associated with X-rays: the chance you could experience symptoms of a severe allergic reaction.

  1. Contrast Media

    • Contrast media are substances such as barium or air that are introduced into your body to increase contrast when radiographic images such as X-rays are taken. Some people experience symptoms similar to a severe allergic reaction when exposed to contrast media, according to the book "Contrast Media."

    Allergy Symptoms

    • Symptoms of a reaction to a contrast medium can begin slowly, with a runny nose or an itchy skin rash. The reaction can escalate quickly, with more serious symptoms including difficulty breathing, nausea, dizziness and low blood pressure, according to the American College of Allergy, Asthma & Immunology.

    Treatment

    • Doctors can use newer forms of contrast media, which are less likely to cause the allergic reactions. Corticosteroids and antihistamines can be used to alleviate symptoms once they occur. If you start to feel any symptoms of a reaction after being injected with a contrast medium, tell your doctor immediately.

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