What is a CT scan?

A CT (Computed Tomography) scan uses X-rays to create detailed cross-sectional images of the body. These images show thin slices that can be viewed individually or together.

What happens during the scan?

• Preparation depends on the area being scanned
• You may complete a short questionnaire
• You will lie on a table that moves through the scanner
• You must stay still; you may be asked to hold your breath briefly
• The scan usually takes 5–20 minutes

Contrast injection (if needed)

• Sometimes used to improve image clarity
• May cause a warm feeling or metallic taste for a few minutes

After the scan

• A radiologist reviews the images
• A report is sent to your doctor within 24 hours

Risks

• Very small radiation dose
• Rare allergic reaction to contrast
• Tell staff immediately if you feel unwell (rash, itching, nausea, dizziness, swelling)