Final answer:
In a left posterior oblique position for a nephrogram, the right ureter and left kidney are better visualized. The left kidney is higher than the right, and a nephrogram provides detailed imaging of renal anatomy and function.
Step-by-step explanation:
A left posterior oblique position for a nephrogram will demonstrate the right ureter and left kidney. In this radiographic examination, the patient's position allows for better visualization of these structures due to the orientation within the body. The kidneys are retroperitoneal, and the left kidney is typically situated slightly higher than the right due to the presence of the liver on the right side of the body. This positioning affects the visibility of the ureters and kidneys on certain oblique angles. A nephrogram is a type of imaging study that focuses on kidney anatomy and function, and it is crucial in diagnosing various renal conditions.