Radiographic Positioning II - Final Exam

38) A nephrogram taken during an IVU demonstrates that the renal parenchyma is poorly visualized but the calyces are contrast enhanced. What is the most likely reason for this radiographic outcome? a. The kV may have been too high. b. The contrast media was diluted. c. The patient has hypertension. d. The exposure was not taken soon enough following the injection. - d. The exposure was not taken soon enough following the injection. A "scout" film is generally taken at what point in the IVU process a. Before injection of contrast b. Immediately after injection of contrast c. One minute after injection of contrast d. Five minutes after injection of contrast - a. Before injection of contrast A 2-year-old child comes to radiology for a cervical spine series. The child is unable to hold still for the projections even with immobilization. Which of the following individuals should be asked to hold the child if present? a. Radiography student wearing protective apron b. Older technologist wearing protective apron c. Father wearing protective apron d. Nurse wearing protective apron - c. Father wearing protective apron A 30 degree tilt of the C-Arm will increase the dose received by how many times? a. 2 b. 4 c. ½ d. 8 - b. 4 A 45 degree RPO radiograph taken during an IVU reveals that the left kidney is foreshortened. What modification is needed to improve this image during a repeat exposure? a. Decrease patient obliquity b. Increase patient obliquity c. Increase CR angle d. Decrease CR angle -