A client has a three-way catheter in place status post transurethral resection of the prostate (TURP) and is experiencing bladder spasms. Which medication should the nurse advocate to be prescribed?

A. Oxybutynin: Oxybutynin is an anticholinergic that reduces bladder spasms by relaxing the detrusor muscle. It is commonly prescribed post-TURP to relieve discomfort caused by involuntary bladder contractions, especially when a catheter is in place. B. Phenazopyridine: Phenazopyridine is a urinary analgesic that helps relieve pain, burning, and urgency associated with urinary tract irritation. However, it does not address the underlying muscle spasms that occur post-TURP. C. Finasteride: Finasteride is a 5-alpha-reductase inhibitor used for long-term management of BPH by shrinking the prostate. It is not effective for acute relief of post-procedural bladder spasms and works slowly over months. D. Tamsulosin: Tamsulosin is an alpha-1 blocker that relaxes prostatic and bladder neck muscles to improve urine flow. While useful in BPH management, it does not treat the muscle spasms that can occur after catheterization or TURP.