Which of the following is a common side effect of contrast agents in imaging?

Allergic reactions are a well-documented side effect of contrast agents used in imaging. Contrast agents, often containing iodine, can provoke an immune response in some individuals, leading to mild to severe allergic reactions. Symptoms of allergic reactions can range from hives and itching to more serious issues like anaphylaxis, which requires immediate medical attention.

Understanding this aspect of radiology is crucial for patient safety and for preparing healthcare providers to recognize and manage allergic responses. The potential for allergic reactions is why pre-assessment for any history of allergies to contrast materials or related substances is a vital part of the imaging process. This knowledge helps ensure a safer experience for patients undergoing procedures that require contrast-enhanced imaging.