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In case of a '''contrast medium reaction''', a patient should be evaluated for the presence of the following symptoms and be medicated accordingly. Anaphylaxis is a more severe allergic reaction whose diagnostic criteria generally include low blood pressure and/or respiratory distress,<ref name="KimFischer2011">{{cite journal|last1=Kim|first1=Harold|last2=Fischer|first2=David|title=Anaphylaxis|journal=Allergy, Asthma & Clinical Immunology|volume=7|issue=Suppl 1|year=2011|pages=S6|issn=1710-1492|doi=10.1186/1710-1492-7-S1-S6}}</ref> and indicate the attention of an anesthesiologist or corresponding clinician on duty.