A video urodynamic test is a diagnostic procedure that combines cystometry and fluoroscopy to evaluate the bladder and urinary tract function during urination. It is typically performed to diagnose urinary incontinence, urinary retention, and other disorders.

During a video urodynamic test, a catheter is inserted into the bladder through the urethra to measure bladder pressure and urine flow rate. Another catheter is placed in the rectum to measure intra-abdominal pressure. The patient is then positioned under a fluoroscopy machine, which uses X-rays to produce real-time images of the urinary tract as the patient urinates. The procedure may also include a pelvic ultrasound to evaluate the structures of the pelvic area.

The video urodynamic test provides detailed information about bladder and urethral function, including bladder capacity, sensation, and obstructions or abnormalities. It can also identify the type of urinary incontinence and help determine the most appropriate treatment.

The test is usually performed in a hospital or clinic setting and can take approximately 30 to 60 minutes to complete. It is generally considered a safe and minimally invasive procedure, although some patients may experience mild discomfort during catheter insertion or urination.