Final answer:
When viewing a CT or MRI image, the patient's right side is on the viewer's left side.
Step-by-step explanation:
When viewing a CT or MRI image, the patient's right side is on the viewer's left side. This means that when you are looking at an image, the right side of the patient's body will appear on the left side of the image. This is because medical images are typically shown as if the viewer is facing the patient.