When to Seek Medical Care

The reaction to the contrast is almost always immediate, so it is very rare to have a reaction after you leave the facility. However, if you think you are having a delayed reaction to the contrast, call the facility where you had the exam.

Symptoms include itching and difficulty breathing or swallowing. If contrast leaked under the skin, you should look for increased redness, swelling, or pain. You will often be asked to come back the next day so your skin can be checked. There are no side effects to the exam itself.

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