Prevention of contrast nephropathy – Radiology MCQ

Which of the following contrast agents can be used in a patient with renal dysfunction for the prevention of contrast nephropathy?

A. Low osmolar contrast
B. Ionic contrast
C. Fenoldopam
D. Acetylcysteine

Correct answer : A. Low osmolar contrast

Non ionic low osmolar contrast agents are preferred in patients with decreased renal function to prevent contrast nephropathy
Ionic contrast media have a higher risk for contrast nephropathy, and hence should be avoided
The amount of contrast media used should be limited
The patient should be well hydrated before the procedure
Supplementary interventions include use of N-acetylcysteine, fenoldopam, theophylline, prostaglandins and magnesium