Organize the Following Tests According to When They Should Be

Organize the following tests according to when they should be ordered:
a. Radiographic examinations of the urinary tract
b. Radiographic examinations of the biliary system
c. All x-ray examinations that do not require contrast media
d. Upper GI series (barium swallow)
e. CT studies of the abdomen or pelvis (done before barium studies)
f. Lower GI series (barium enema)
g. CT studies with IV contrast any time after iodine uptake blood studies
h. Fiberoptic studies (e.g., gastroscopy, endoscopy, sigmoidoscopy, colonoscopy)
i. Any laboratory studies or nuclear medicine procedures involving iodine uptake