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Contrast allergies

Contrast allergies
Type Incidence Management Symptoms
Mild 3% Self-limited Pruritus, urticaria, nausea, vomiting, flushing, headache
Moderate 0.2 to 0.4% Treatment required Symptoms in mild category requiring therapy, laryngeal edema, dyspnea
Severe 0.04% Hospitalization required Cardiac arrhythmia or arrest, circulatory collapse, seizures, unconsciousness
References:
  1. Morcos SK, Thomsen HS. Adverse reactions to iodinated contrast media. Eur Radiol 2001; 11:1267.
  2. Thomsen HS, Bush WH Jr. Adverse effects of contrast media: Incidence, prevention and management. Drug Saf 1998; 19:313.
  3. Thomsen HS, Dorph S. High-osmolar and low-osmolar contrast media. An update on frequency of adverse drug reactions. Acta Radiol 1993; 34:205.
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