Which buttons/settings on a fluoroscopy unit help to reduce the amount of exposure to the patient while the radiologist is fluoroing a live image?

What is number 2?

Situation:  During a single-contrast barium enema, the radiologist detects a possible defect within the right colic flexure. Which of the following projections and/or positions best demonstrates this region of the colon?

What is the degree of body rotation for the PA oblique projection of the esophagus?

What is the CR for the PA axial large bowel image?

Which of the following positions best demonstrates the left colic flexure?

Which position/view for a large bowel study demonstrates the right colic flexure open?

What is the average degree of body rotation for an AP oblique projection of the stomach and duodenum?

Which projections/views taken during a barium enema will demonstrate the rectosigmoid area?1) lateral2) PA axial3) RPO

What is the CR for the AP axial “upshot” image for a BE exam?