Which statement describes the goal of a spontaneous voiding trial after catheter removal?

• A. The patient voids with acceptable post-void residual.
• B. The patient voids at least 300 mL.
• C. The patient voids without any residual check.
• D. The patient does not void but urine output is adequate.

Answer: (A)

The aim of a spontaneous voiding trial after removing a catheter is to determine if the patient can urinate on their own and actually empty the bladder. The key sign of success is voiding with an acceptable post-void residual—meaning the amount of urine left in the bladder after voiding is low enough to indicate complete or near-complete emptying. This residual threshold varies by protocol but is generally under about 100–200 mL; meeting it shows the bladder is functioning adequately without the catheter.

Voiding a large volume, such as 300 mL, isn’t the primary measure of success. The focus is on emptying efficiency, not just how much is voided. Some patients may urinate smaller volumes yet still achieve a low residual, which is acceptable. Conversely, if there’s no void or if the residual is not assessed and found to be high, the trial isn’t successful and further management—like re-catheterization or additional evaluation—may be needed.