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:

• Half (½) hour before the examination → 2 cups.
• 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.

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.