# OnCo record contrast-reaction-history-and-premedication (protocol). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/protocols/contrast-reaction-history-and-premedication/>
  a schema:MedicalGuideline ;
  onco:kind "protocol" ;
  schema:identifier "contrast-reaction-history-and-premedication" ;
  schema:name "Contrast scans after a previous contrast reaction: allergy referral, switching agent and premedication"@en ;
  schema:alternateName "contrast allergy"@en, "contrast premedication"@en, "steroid premedication before CT"@en, "allergy to CT dye"@en, "iodine contrast allergy"@en, "gadolinium allergy"@en, "contrast hypersensitivity"@en, "recurrent contrast reaction prevention"@en ;
  schema:description "If you have reacted to a scan dye before, tell the team every time, and ask that the name of the dye goes in your records. European radiologists now advise using a different dye, chosen with an allergy specialist where possible, rather than taking steroid tablets beforehand, which have not been shown to prevent serious reactions. A needed scan should not be refused because of an old reaction."@en ;
  schema:url <https://onco.cc/protocols/contrast-reaction-history-and-premedication/> ;
  schema:dateModified "2026-11-11"^^xsd:date ;
  onco:related <https://onco.cc/protocols/iodinated-contrast-kidney-and-metformin/> ;
  onco:technologies <https://onco.cc/technologies/iodinated-contrast-media/>, <https://onco.cc/technologies/gadolinium-based-contrast-agents/>, <https://onco.cc/technologies/ct/>, <https://onco.cc/technologies/mri/> .