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Patient Preparation for CT examinations

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In examinations like CT angiography of visceral vessels, abdominal aorta and iliac arteries and in cases of axial urography no contrast material is used.

Examination Upper-Lower Abdomen and Retroperitoneum

For the successful examination of the abdomen it is required not to eat / drink 6 hours before the exam, it is necessary to use a Gastrografin solution (Gastrografin).

For upper abdomen examination the patient drinks one (1) cap of Gastrografin diluted in one (1) glass of water, with the following dosage:

  1. Half (½) hour before the examination → 2 cups.
  2. Immediately prior to testing → 1 glass.

For upper-lower abdomen and retroperitoneum examination the patient drinks one (1) cap of Gastrografin diluted in one (1) glass of water, with the following dosage:

  • The night before the exam, 10:00pm. → 2 cups.
  • Two (2) hours before the examination → 2 cups.
  • Half (½) hour before the examination → 2 cups.
  • Immediately prior to testing → 1 glass.

[notice]In cases with a history of alergic sensitization and / or asthma it is necessary to contact your physician with the Health Centre to recommend preparing desensitization in contrast iodide to be given to you intravenously.[/notice]