Going For a CT Scan

A CT (computed tomography) scan is a diagnostic medical imaging test that uses X-rays and computer technology to create detailed images of the inside of your body.

A CT scan can help diagnose various conditions, plan medical or surgical treatment, and monitor the effectiveness of treatment.

Preparation depends on the type of CT scan you are having. Generally, you may need to avoid eating or drinking for a few hours before the scan. You should also remove any metal objects, such as jewellery, as they can affect the images.

You should continue to take prescribed medication unless advised otherwise by your doctor. If you are unsure, consult your healthcare provider.

Depending on the type of scan, you may need a contrast dye to highlight certain areas of your body. This is usually given through an injection or orally.

You will lie on a table that slides into a large, doughnut-shaped machine. The radiographer will control the scanner from another room but communicate with you via an intercom. You need to stay still, and you may be asked to hold your breath for short periods.

A CT scan typically takes about 10 to 30 minutes, depending on the part of the body being examined and whether a contrast dye is used.

CT scans do involve exposure to a small amount of radiation. However, the benefits of an accurate diagnosis generally outweigh the risks. If you are pregnant or have any concerns, discuss them with your doctor.

You can usually return to your normal activities immediately after the scan. If you had a contrast dye, you might be advised to drink plenty of fluids to help flush it out of your system.

A radiologist will analyze the images and send a report to your referring doctor, who will discuss the results with you. This process may take a few days.

Yes, you can resume eating and drinking as normal unless advised otherwise by your healthcare provider, particularly if a contrast dye was used.

The scan itself is generally painless. You may feel a slight discomfort from lying still or from the injection of the contrast dye.

Yes, you can drive unless you've been given a sedative or advised otherwise. If you feel unwell after the scan, it’s best to arrange for someone to drive you home.

If you have claustrophobia, inform your doctor and the radiographer before the scan. They can provide support and, if necessary, a mild sedative to help you feel more comfortable.

Yes, CT scans are available on the NHS. Your doctor will refer you if they think you need one. Alternatively, you can choose to have the scan done privately.