Question

question 61
________ involves taking x - rays to trace the action of the kidney as it expels a dye injected into the bloodstream.
a cystography
b retrograde pyelogram
c excretory urography
d renography

Explanation:

• Cystography: Focuses on the bladder, not the kidney expelling dye from the bloodstream.
• Retrograde pyelogram: Involves inserting a catheter into the ureter, not dye injected into the bloodstream.
• Excretory urography: Dye is injected into the bloodstream, kidneys filter it, and X - rays trace its expulsion.
• Renography: Usually uses radioactive tracers (not just X - rays with dye injection as described in the question).

Answer:

C. Excretory urography