Diagnostic Imaging
CT Scans
A CT scan is a type of advanced X-ray that takes detailed pictures of the inside of your body. You lie on a table that moves through a large, doughnut-shaped machine. As you pass through it, the machine takes many X-ray images from different angles. A computer then combines these pictures to create clear, cross-section views—like looking at individual slices of a loaf of bread. These slices can be stacked together to give doctors a better understanding of what’s going on inside your body.
Contrast dye is often used in CT which helps certain parts of your body show up more clearly on the scan. It makes blood vessels, organs, or other tissues easier for doctors to see. The dye can be given in different ways: through an IV in your arm, by drinking it, or sometimes as an injection in another area. Once the dye is in your body, it absorbs the X-rays differently than your normal tissues, which makes the images brighter and clearer. This helps doctors spot things like infections, blockages, tumours, or other problems more accurately. Most people do fine with contrast dye. Some may feel warm, get a metallic taste in their mouth, or feel like they need to urinate—these sensations are common and usually go away quickly. Serious reactions are rare, but the medical team always checks your history to make sure it’s safe for you.
Preparation Instructions
Please carefully follow the preparation instructions provided by the Patient Appointment Office when your appointment is booked. These instructions are essential to ensure your exam is accurate and can be completed as scheduled.
In addition:
- Wear comfortable clothing: Choose pants with an elastic or drawstring waist. Avoid zippers, metal buttons, or snaps around the waist area.
- Remove all piercings and jewelry before your CT scan.
If contrast was indicated for your exam:
Updated Bloodwork Required
- You will need bloodwork completed within 6 months of your appointment if any of the following apply:
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- You are 70 years of age or older
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- You are diabetic
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- You have kidney impairment
- Please contact your physician to arrange this bloodwork.
Allergic Reactions:
If you have ever experienced an allergic reaction to any IV contrast agents, please call the Patient Appointment Office at (519) 437-6089.
If READI-CAT Oral Contrast Is Required:
- If your exam requires READI-CAT oral contrast, you can purchase it at the following pharmacies:
- Chatham Family Pharmacy – 835 Queen St., Chatham | 519-397-2324
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Shoppers Drug Mart – 416 St. Clair St., Chatham (Nortown) | 519-352-3200
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Shoppers Drug Mart – 420 Queen St., Chatham | 519-352-3360
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Shoppers Drug Mart – 485 Grand Ave. W, Chatham | 519-354-1660
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Rexall Pharmacy – 401 St. Clair St., Chatham | 519-436-0005
- Chatham Family Pharmacy – 835 Queen St., Chatham | 519-397-2324
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Apollo Pharmacy – 2-380 Queen St | 226-996-7676
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Shoppers Drug Mart – 21 Chatham St. N, Blenheim | 519-676-8164
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Shoppers Drug Mart – 22 Main St. W, Ridgetown | 519-674-5463
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Shoppers Drug Mart – 30 McNaughton Ave., Wallaceburg | 519-627-2204
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Hauser’s Pharmacy – 225 Nelson St., Wallaceburg | 519-626-1040
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Shoppers Drug Mart – 20 Mill St. W, Tilbury | 519-682-2272
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Pharmasave – 8 Queen St. N, Tilbury | 519-682-0867
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MacTavish Pharmacy – 480 St. George St., Dresden | 519-683-4491
CT Scan Contact
Address
80 Grand Ave. W,
Chatham ON
Zone D, Level 1
Phone
Department:
519.437.6089
For questions or clarifications about an upcoming CT Scan, call (519) 437-6089
