A CT scan or CAT scan uses x-rays, with the aid of sophisticated computer software, to produce highly detailed cross-sectional images of any part of your body. Most CT examinations are fast and painless procedures.
To allow the procedure to be performed as efficiently as possible, you may be asked to undergo the following preparations:
Nothing to eat for 2 hours prior to your appointment time. You may drink water only.
Nothing to eat for 4 hours prior to your appointment time. You may drink water only.
Depending on why the scan is to be performed, you may be given a dilute barium drink which enables the Radiologist to interpret your images easier. You will be asked to drink the diluted barium 45 minutes prior to entering the CT scan room.
Please arrive for your appointment with a reasonably full bladder.
No fasting is required. Please remove all head and neck jewellery.
No fasting is required. Please remove any relevant jewellery.
Prior to scanning you may be asked to change into a gown. During scanning you will lie on a table which moves you into the circular shaped (doughnut) CT scanner. Scanning is very quick and you may be asked to hold your breath for a very short time.
Some CT scans may require an injection of contrast medium (dye) into an arm. This allows imaging of blood vessels and various parts of the body and head. If required you will be asked to complete a questionnaire and give your consent.
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