As with most radiological procedures, there may be preparations that will be required to be done by you. Below are some preparations needed to ensure a successful and smooth CT scan appoinment.
Please inform your doctor if you have a history of asthma. You may require some preparatory medicine if your scan requires the use of contrast media.
As you will be going through the middle of a "doughnut", please inform your doctor before scheduling the examination if you are claustrophobic or easily anxious.
To minimize changing, it is advised to wear clothes without accessories (e.g. buttons, zippers, hooks, piercings, and jewellery). You may be asked to change into a hospital gown depending on the type of scan. A locker will be provided to secure your personal belongings.
CONTRAST MEDIA ALLERGIES
Please inform your doctor if you have done imaging tests previously with contrast media and developed allergic reactions subsequently (e.g. rashes, swelling around the eyes). You may require some preparatory medicine prior to the scan. An alternative diagnostic test may also be suggested.
Metformin is encouraged to be withheld for 48 hours after the administration of intravenous contrast media unless otherwise indicated. Do check with your doctor or the attending Radiographer when in doubt.
If your scan is ordered without contrast, you can eat and drink prior to your examination.
If your scan is ordered with contrast, do not eat anything 3 hours prior to your scan. Sips of plain water is allowed. You may also take your prescribed medications unless otherwise instructed.
PATIENT POSITION DURING SCAN
All CT scans are done with patient lying supine. If you have difficulties lying on your back, please inform your doctor before scheduling the examination.
If you are pregnant or think you may be pregnant, please inform your doctor before scheduling the examination. For females of child bearing age (12 to 55 years old inclusive), you will be asked for the first day of your last menstrual period (LMP) and if there is any possibility of pregnancy prior to the scan.
PRIOR CT SCANS
If you have done a CT scan recently or scheduled to do a CT scan with another clinician, please inform your doctor before scheduling the examination.
If you have problems with your kidney function or currently on dialysis, please inform your doctor before scheduling the examination. You may be asked to do a creatinine serum blood test to check for your kidney function prior to your scan. The blood test will be sent to the laboratory and processing time can take up to 2 hours from your scheduled appointment time.