Contrast exam: What to do before and after?

Опубликовано: 27 Март 2026
на канале: Clínica IMEB
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Contrast-enhanced imaging exams are frequently used for accurate diagnoses, but they can raise questions and concerns.

In this video, Dr. Renato Barra answers frequently asked questions about the use of contrast in exams such as CT scans and MRIs, as well as providing guidance on what to do before and after the procedure.

What you'll learn in this video:

🔸 Seafood Allergies and Contrast: Discover why seafood allergies generally don't prevent exams with iodinated contrast.

🔸 Pre-Exam Precautions: Learn the importance of fasting and informing your doctor about any allergies, kidney problems, pregnancy, or diabetes before undergoing contrast exams.

🔸 Post-Exam Precautions: After the exam, it's essential to drink plenty of water to help your body eliminate the contrast more quickly and efficiently.

🔸 Contrast Allergy Risks: Understand that allergic reactions to contrast are rare and, in most cases, mild, such as itching or rashes. Serious reactions, such as difficulty breathing, are even more uncommon.

If you have questions or need more information about the use of contrast in imaging exams, visit our website or contact our customer service center.

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