Final answer:
The geometric area of the FPD used decreases with increasing amounts of zoom.
Step-by-step explanation:
When using the "zoom" feature for magnifying the digital fluoroscopy image, the geometric area of the FPD used decreases with increasing amounts of zoom.
The zoom feature allows the user to magnify a specific region of interest within the image. As the zoom level increases, the area being magnified becomes smaller, resulting in a decrease in the geometric area of the image.
For example, if you zoom in on a specific object in the image, the area of the object that is visible will decrease, but the magnification of the visible portion will increase.