CT Scan

  • 15 mins - 1 hour procedure
  • Wear comfortable clothes
  • Most patients are able to drive home

Find your local practice

Everything to know about CT scan

How CT scans work

A computerized tomography (CT) scanner uses X-rays to create multi-dimensional images of a specific area which help to diagnose medical conditions. In some cases, contrast media may be injected to provide further detail. You'll lie on a table which moves inside the scanner to obtain images.

A CT scan can be used to examine most parts of the body, including:

  • Internal organs
  • Blood vessels
  • Bones and joints

What to expect

A CT scan is a relatively low-risk procedure as it is non-invasive.

When you arrive, you'll be asked to fill out a form overviewing your medical history, including any allergies. Depending on the scan, you may need to change into a gown and have a cannula inserted for a contrast injection. It's very important to lie comfortably on the CT bed - any movement will make the scan less clear. Sometimes you'll need to hold your breath for a brief period (less than 20 seconds).

The day of the CT

The day before
Drink plenty of fluids so you're well hydrated

Arrive 15 mins before appointment to fill in paperwork

Prior to scan
A down & cannuila might be required

The CT scan
15 mins - 1 hour procedure

After scan
Finalise appointment with reception and go home

Request a CT scan appointment

Find your local practice


Will I be sedated for the procedure?

No sedation is required for any X-Ray or Fluoroscopy procedures.

Will I need someone to drive me home?

There's no need for a driver or assistance following any X-Ray or Fluoroscopy procedure unless normally required.

Do I need to stop taking my medications?

No, it's usually advised to keep taking all regular medications. Even if you're fasting, you can take your tablets with water. While some CT scans require you to pause your medications, you'll be informed when making your booking.

Should I drink extra fluids after the procedure?

If your study requires consumption or administration of barium sulfate, it's recommended that you mildly increase your fluid intake after the exam. This is because barium sulfate is a dense and inert (not chemically reactive) product that remains within the gastrointestinal tract in trace amounts.

Depending on patients' motility, a mild laxative could be helpful with the evacuation of residual barium sulfate. Consult your physician prior to using any laxative, as it may cause dehydration.

Will I be able to eat a regular meal after the procedure?

After the completion of the Fluoroscopy, you'll be able to resume your regular diet and activities unless informed otherwise by your physician.

Meet Dr Peter Zheng

Consultant Radiologist, Lumus Imaging, Brisbane

"We are constantly adopting the latest technology and ideas, expanding into regional, rural and metropolitan areas, and attracting professionals with genuine talent and enthusiasm at every level. "

About us