Which of the following tests is commonly used to evaluate bladder function?

Urodynamics is a specialized set of tests designed to assess how well the bladder and urethra are functioning. This evaluation includes measuring bladder pressure, the volume of urine the bladder can hold, and how well the bladder can empty. By observing the pressure flow dynamics during filling and voiding, urodynamics helps in diagnosing various bladder conditions such as overactive bladder, urinary incontinence, or bladder obstruction.

In contrast, urinalysis primarily focuses on examining the composition of urine to detect infections, kidney function, or metabolic disorders, rather than directly assessing bladder function. Cystoscopy allows for visual inspection of the bladder and urethra through a scope but does not provide quantitative assessments of bladder functionality. A CT scan offers detailed imaging of the urinary tract but does not assess functional parameters like pressure and flow associated with bladder function. Therefore, urodynamics stands out as the method specifically tailored to evaluate bladder performance comprehensively.