Final answer:
The NOT recommended option for a CT colonography exam is 200 mAs.
Step-by-step explanation:
The NOT recommended option for a screening CT colonography exam is 1) 200 mAs.
CT colonography uses a low dose of radiation to create cross-sectional images of the colon and rectum. It is a non-invasive imaging technique used to detect polyps and colorectal cancer. The recommended options for a screening CT colonography exam include: 2) both prone and supine scanning to obtain optimal views of the colon, and 3) post-processing to visualize inside surfaces of the bowel. These options help ensure a thorough examination of the colon and improve the accuracy of the results.