Common Factors Predisposing Patient to Contrast Reactions

FactorPredisposing characteristic
AgeInfants and those older than 60 y
SexFemales > males
Underlying medical conditionsAsthma, heart disease, dehydration, renal disease, diabetes
Hematologic conditionsMyeloma, sickle cell disease, polycythemia
MedicationsNSAIDs, IL-2, β-blockers, biguanides
Contrast-related>20 mg iodine, faster injection rate, intraarterial, previous contrast reactions
  • NSAIDs = nonsteroidal antiinflammatory drugs; IL-2 = interleukin-2.