A Client With A Markedly Distended Bladder Is Diagnosed With Hydronephrosis

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A Client With A Markedly Distended Bladder Is Diagnosed With Hydronephrosis

and left hydroureter after an IV pyelogram. The nurse catheterizes the client and obtains a residual urine volume of 1650 ml. This finding supports which pathophysiological cause of the client's urinary tract obstruction? A) Obstruction at the urinary bladder neck. Feedback: CORRECT B) Ureteral calculi obstruction. Feedback: INCORRECT C) Ureteropelvic junction stricture. Feedback: INCORRECT D) Partial post-renal obstruction due to ureteral stricture.
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Hydroureter (dilation of the renal pelvis), vesicoureteral reflux (backward movement of urine from the lower to upper urinary tracts), and hydronephrosis (dilation or enlargement of the renal pelvis and calyces) result from post-renal obstruction which can consequently result in chronic pyelonephritis and renal atrophy. Ascending urinary reflux occurs when normal ureteral peristaltic pressure is met with an increase in urinary pressure occurring during bladder filling if the urinary bladder neck is obstructed (A). A large residual urine does not occur with (B, C, and D) because the urine can not get to the bladder.
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