CT Coronary Angiography Preparations
- You should arrive 1 hour before your appointment to allow for adequate preparation before your scan.
- Do not ingest any stimulants such as caffeine, cigarettes or Viagra at least 4 hours before your procedure as this can elevate your heart rate.
- You may be required to take beta blocker medication orally the night before and the morning of the examination if advised by your doctor.
- You will be asked to change out of your clothes and put on a hospital gown.
- Bring all your medications with you on the day of the procedure.
- If you are diabetic and taking metformin you may or may not be required to stop taking it before your scan depending on your kidney function. Please check with the site before the date of your examination.
- If you require beta blocker medication on the day of examination, you may be a little light headed or dizzy after the scan and require someone to drive you home.
What does the procedure involve?
After registration you will be asked about your medical history and your questionnaire and consent forms will be verified. Your heart rate will then be checked using an ECG machine which will then be reviewed by the specialist supervising the scan. If your heart rate is above 60bpm then you may be given Beta Blocker medication either orally or intravenously to lower your heart rate. Your blood pressure and saturation levels may also be measured.
During Your CT scan
Once your heart rate has reached a desired level you will be taken into our procedure room and positioned on the CT table. An intra-venous cannula will be inserted into your arm if it has not already been done so and ECG leads will be attached to monitor your heart rate. You will receive a rapid intravenous injection of contrast just before the scan commences. You will be asked to hold your breath and the table will move into the scanner.
You may experience a brief hot flushed feeling, get a funny metallic taste or smell from the contrast injection. It is also common to feel a sensation in the pelvis or bladder area which can make feel that you need to urinate or that you have urinated. This is just a sensation and you do not actually urinate.
After Your CT Scan
Once the scan is complete the cannula in your arm will be removed and you will be taken to a recovery area. If you notice any pain, redness, and/or swelling at the injection site after you return home following your procedure, you should notify your physician as this could indicate an infection or other type of reaction.
How long will it take?
The scan will take 20 minutes however the total time including preparation and recovery may take between 2-3 hours depending on the individual.