Which is a radiologic procedure in which x-rays are taken as the patient urinates and expels a contrast dye that was previously inserted into the bladder?
A) voiding cystourethrography
B) retrograde pyelography
C) urinalysis
D) intravenous pyelography
A
Explanation: A) Correct!
B) In retrograde pyelography, a contrast dye is inserted into the ureter and kidney, not into the bladder.
C) Urinalysis does not use a contrast dye.
D) In intravenous pyelography, a contrast dye is injected into the vein, not into the bladder.
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