A 45-year-old female is awaiting discharge from the post-anesthesia recovery unit but is unable to void. She is two hours post-completion of a transobturator tension-free vaginal tape procedure for stress urinary incontinence. The procedure was uncomplicated with minimal blood loss. It was performed under spinal anesthesia. Post-procedure cystoscopy was normal. She is in minimal pain after taking ibuprofen and oxycodone. She is tolerating a general diet without nausea. She reports the sensation of a full bladder. She has no significant past medical or surgical history. She is currently taking multivitamins (one tablet PO daily) and has no known drug allergies.