The infusion time of iotroxate (Biliscopin®) in relation to bilirubin level prior to the investigation. The recommended infusion times were followed in 103 out of the 110 cases (94%) where information on infusion time was found in the medical records. Cases in which the recommendations were not followed are encircled (n = 7). Unfortunately, none of the three (3/110) examinations with a bilirubin value >100 μmol/ml was performed according to the infusion scheme. The patient with the highest bilirubin value (159 μmol/ml) had good diagnostic excretion of contrast in the bile ducts, whereas the other two had no excretion.