What are the major contraindications to the administration of intravascular contrast material?
• Patient refuses to receive intravascular contrast material.
• Patient did not receive premedication, when indicated, prior to scheduled contrast administration.
• Patient has renal insufficiency.
• Patient has thyroid disease that will be treated with systemic 131 I radiotherapy. This contraindication applies for iodinated, not gadolinium-based, contrast material only. The reason is that iodinated contrast material transiently decreases 131 I radiotracer uptake in the thyroid gland, potentially decreasing the effectiveness of subsequent radioiodide therapy.
• Patient is pregnant. This contraindication particularly applies for the intravascular administration of gadolinium-based contrast material.
