Description
Test Preparation
To ensure accurate results, follow these preparation guideline:
- Fasting:
• For a plain scan: No fasting required.
• For a contrast scan: Fasting for 4–6 hours before the test may be required. - Metal Object Removal:
• Remove jewelry, glasses, dentures, hearing aids, or metal objects around the head and neck to avoid image distortion. - IV Contrast Injection (If Used):
• A contrast dye (iodine-based) may be injected into a vein for better imaging.
• Inform your doctor if you have:
Allergies to iodine or contrast dye
Kidney disease or diabetes (contrast dye can affect kidney function)
Pregnancy or breastfeeding - Clothing:
• Wear comfortable, loose-fitting clothes without metallic zippers or buttons around the head and neck. - Breathing & Positioning Instructions:
• You will need to lie still on the CT table.
• The technician may ask you to hold your breath for a few seconds to avoid motion blur. - Post-Procedure Care:
• For contrast scans: Drink plenty of water to flush the dye from your body.
• For plain scans: No special precautions, and you can resume normal activities immediately.


