ADVERSE EFFECTS OF IODINATED CONTRAST USED IN IMAGING EXAMS: CHALLENGES FOR RADIOLOGIC TECHNOLOGISTS

Abstract

Iodinated contrast media are widely used in imaging examinations, contributing to improved image quality and increased diagnostic accuracy. However, their administration may be associated with adverse reactions of varying severity, ranging from mild manifestations such as nausea and pruritus to severe events such as anaphylaxis and contrast-induced nephropathy. This study aimed to review aspects related to the use of these agents, with emphasis on risk factors, types of adverse reactions, and prevention strategies. This is a literature review based on scientific publications and national and international guidelines. The main preventive measures include detailed medical history assessment, appropriate selection of the contrast agent, intravenous hydration in at-risk patients, and prophylactic premedication when indicated, aiming to reduce complications and improve the safety of radiological procedures.