An x-ray exam that uses contrast material injected into the vascular system to evaluate the function of kidneys, bladder, and ureters is called?

• A. Projection
• B. Intravenous Pyelogram
• C. View
• D. Cholecystogram

Answer: (B)

The main concept is how a contrast-enhanced X-ray study visualizes the urinary tract by using contrast injected into the bloodstream. An Intravenous Pyelogram uses intravenous contrast that the kidneys filter and excrete into the urinary system, allowing the kidneys, ureters, and bladder to be seen on X-ray. This lets you assess anatomy and function—how well the kidneys excrete the contrast, check for stones, obstructions, or other abnormalities in the urinary tract.

Other terms like projection or view are generic imaging terms and don’t describe this specific urinary tract study. A cholecystogram is for imaging the gallbladder, not the kidneys, ureters, or bladder, so it wouldn’t answer questions about the urinary tract.