________ 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
C) Excretory urography
Excretory urography involves injecting dye into the bloodstream and then taking
X-rays to trace the action of the kidney as it excretes the dye. Cystography is the process of
placing dye in the bladder by catheter and taking an X-ray. Retrograde pyelogram is a diagnostic
X-ray in which dye is inserted through the urethra to outline the bladder, ureters, and renal
pelvis. Renography is not a diagnostic procedure listed.
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