Table 1 Grading of the severity of immediate hypersensitivity reactions to CM [16]
Symptoms | |||||
|---|---|---|---|---|---|
Grade | Skin | Abdomen | Respiratory tract | Circulation | |
I | Pruritus Flush Urticaria Angioedema | ||||
II | Pruritus Flush Urticaria Angioedema | (Not obligatory) | Nausea Cramping | Rhinorrhea Hoarseness Dyspnea | Tachycardia (δ > 20/min) |
III | Pruritus Flush Urticaria Angioedema | (Not obligatory) | Vomiting Defecation Diarrhea | Laryngeal edema Bronchospasm Cyanosis | Hypotension (δ > 20 mmHg syst.) Arrhythmia Shock |
IV | Pruritus Flush Urticaria Angioedema | (Not obligatory) | Vomiting Defecation Diarrhea | Respiratory arrest | Circulatory arrest |