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Division of Medical Imaging Department of Nuclear Medicine Women s and Children s Hospital MAG-3 RENAL SCAN

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Division of Medical Imaging Department of Nuclear Medicine Women s and Children s Hospital MAG-3 RENAL SCAN

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    1. Division of Medical Imaging Department of Nuclear Medicine Women’s and Children’s Hospital MAG-3 RENAL SCAN MAG - 3 Renal Scan A MAG-3 renal scan assesses renal function and drainage where renal abnormalities such as hydronephrosis or renal obstruction are identified. Procedure The test requires an injection of a small amount of radioactive material into a vein. This solution is delivered to the kidneys via the bloodstream. After the injection, scans are immediately taken of the kidneys to assess drainage. The patient is required to keep very still for the images. We therefore position and secure the patient to the scanning table before commencing the study. The images usually takes about 25 minutes to complete. Our doctors will then evaluate the images and in some instances, a diuretic drug, Lasix, will be given to assist kidney drainage. In this case, extra images are taken for a further 20 minutes. Images The injection contains radioactive material that emits gamma rays which are detected by the camera. The camera and the computer convert these rays to an image of the kidneys. Patient Preparation EMLA cream – a local anaesthetic cream is recommended for all children over 6 months of age. The EMLA cream will numb the skin prior to giving the injection. All Children – as we are assessing kidney function, it is important the child is well hydrated. It is recommended at least 1 litre of fluid is consumed before the test. There is no need to fast from solid food for this study, and the child is free to go to the toilet as needed as it is not necessary to have a full bladder for this scan. Side Effects Side effects are very rare (1:1000 patients may have a rash) and most of the injected radioactivity will be cleared from the body within 24 hours. Results The test results will be sent to your referring doctor within a day of completion. Location The Nuclear Medicine department is located on Level 2, Rogerson Building in the Division of Medical Imaging. For further information please ask the Nuclear Medicine Technologist performing the scan or phone the Department of Nuclear Medicine on 8161 6020.

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