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CT Intravenous (IV) Iodinated Contrast

  • CT contrast is an iodinated compound. It is injected through an intravenous line during the examination. During the injection you may feel flushed and get a metallic taste in your mouth.
  • It is important to notify your doctor & our scheduling team if you have had a previous allergic reaction to iodinated contrast as this will require you to be pre-medicated before your exam.
  • Patients 65 and over or patients who have certain medical history will require Renal Function assessment. These Creatinine Levels must be drawn within the last 3 months prior to exam. If your referring doctor does not have the results available at the time of the exam a technologist or nurse can obtain these results while starting your IV.
  • Diabetic patients who are taking Metformin, Metformin XR, Glucophage, Glucophage XR, Glumetza, Fortamet, Riomet, Janumet, Metaglip or Glucovance may be required to abstain from taking   these medications 48 hours after the exam depending on their renal function. A nurse or technologist will instruct these patients once the exam is completed.