Table 1 Classification of adverse reactions in response to contrast media
Severity | Categories of reactions | ||
|---|---|---|---|
Mild | Nausea, vomiting Cough Warmth Headache Dizziness Tremor | Altered taste Itchiness Pallor Flushing Chills | Perspiration Rash, hives Nasal stuffiness Swelling of the eyes and face Anxiety |
Moderate | Tachycardia Bradycardia Hypertension Generalized or diffuse erythema | Dyspnea Bronchospasm Wheezing | Laryngeal edema Mild hypotension |
Severe | Laryngeal edema (severe or rapidly progressing) Unresponsiveness | Cardiopulmonary arrest Convulsions | Profound hypotension Clinically manifested arrhythmia |