Your doctor has referred you for a CT Coronary Angiogram (Cardiac CT). The aim of this scan is to take images of the blood vessels around your heart. However, this is often challenging to do because the heart is constantly moving as it beats. In order to maximise our chances of taking clear, diagnostic images, we will need your heart rate to be low and steady (ideally below 60 beats per minute). To help achieve this, there are some specific preparation instructions that you will need to follow.
This option is preferable to ensure the patient’s heart rate is low and steady when they arrive for their scan.
Maximum 250 mg Metoprolol. Keep checking BP.
If heart rate 60-65 bpm after redosing, use IV Metoprolol 5mg over 1-2 minutes to a max of 20mg.
If heart rate > 65 bpm after redosing, abort scan and rebook for another day.