Adverse reactions to contrast media : an investigation of contrast-enhanced C.T. examinations.

Abstract

The administration of contrast media during radiological examinations increases the diagnostic potential of the examinations since these preparations make it possible to visualise structures and functions which otherwise would not be visible on a radiograph. This research study was designed to investigate the adverse reactions produced by ionic and non-ionic contrast media used at the computed tomography (C.T.) scan room at the Radiology Department of St. Luke's Hospital. A modified format of the research tool used by Katayama et al ( 1990) was utilised in this study. The results indicate that overall, contrast media examinations appear to be safe. However, the use of non-ionic contrast media could provide a higher degree of safety to patients. Based on the findings and the high cost of non-ionic contrast media, a departmental protocol should be adopted for the classification of patients into risk groups and subsequent administration of contrast medium.