Appendix B – Contrast Media Reference Tables
Contrast Agent Reference
| Study Type | Contrast Agent | Concentration / Dilution | Key Considerations |
|---|---|---|---|
| Upper GI | Barium sulfate suspension | 60 – 100 % w/v | High density for double-contrast; moderate for single-contrast. |
| Small Bowel Series | Barium sulfate suspension | ~50 % w/v | Lower density for mucosal coating and transit visualization. |
| Contrast Enema | Barium or water-soluble iodinated agent | 15 – 25 % w/v | Use water-soluble if perforation suspected. |
| IVU / CT Urography | Non-ionic iodinated contrast | Low-osmolar formulation | Verify renal function; monitor for reaction. |
