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Classification of severity of reactions to contrast media
| Minor | Moderate | Severe |
|---|---|---|
| Nausea | Faintness | Hypotensive shock |
| Vomiting (Limited) | Vomiting (Severe) | Pulmonary edema |
| Pruritis | Urticaria (Profound) | Respiratory arrest |
| Diaphoresis | Facial edema | Cardiac arrest |
| Laryngeal edema | Convulsions | |
| Bronchospasm |
