Contrast allergy prophylaxis
| Elective procedure | Emergent procedure | ||||||
| Drug | Dose | Route | Hours before procedure | Drug | Dose | Route | Hours before procedure |
| Prednisone | 0.5–0.7 mg/kg (50 mg max) | PO | 13 7 1 | Hydrocortisone | 2 mg/kg (200 mg max) | IV | 5 1 |
| Diphenhydramine | 1.25 mg/kg (50 mg max) | PO | 1 | Diphenhydramine | 1.25 mg/kg (50 mg max) | IV, IM, PO | 1 |
| References6 37 | |||||||