Urodynamic testing equipment

Urodynamic testing equipment

Urodynamic studies allow your urologist to examine and assess the function of the bladder. Urodynamics takes around 20-30 minutes to perform and does not require any special preparation or anaesthetic. Your study will be performed using imaging of the bladder, either ultrasound or x-rays. The study is performed at either Urology Associates or St George's Radiology.

Please inform us if you could be pregnant or if you have any allergies, particularly to iodine contrast, chlorhexidine, KY jelly, lignocaine gel or latex, as these are often used during this study.



There is no special preparation for this study and you may eat and drink normally.  Please arrive ten minutes prior to your scheduled appointment time.  On arrival, you will be shown to a cubicle, asked to undress and put on a gown. You will be asked to pass urine before having this test.  You will then be shown to the examination room where the test will be performed.

The specialist will insert a small catheter into your bladder via the urethra and a small tube may need to be placed in your rectum. Once the catheters are in place, the bladder is filled slowly with a contrast solution which will outline your bladder and urethra on x-ray screens. Alternatively, your urologist may assess your bladder and kidneys using an ultrasound probe. If this is the case, some cool jelly will be placed on the skin of your abdomen. The catheter tubes are also attached to the urodynamic computer program which reads bladder pressures and volumes. Once the bladder is filled, the catheter in the bladder is removed and you will be asked to empty your bladder into a specially designed toilet.

You will be able to leave immediately after the procedure.  You are able to return to work if you wish.  After the procedure, we encourage you to drink several glasses of fluid.  This will help flush the residual contrast fluid from your bladder.


Following your procedure

Sometimes, your urologist is able to tell you the results of the test on the day of your appointment. Alternatively, a follow-up appointment will be arranged afterwards to discuss the results of your study and discuss options for treatment if needed.


AuthorUrology Associates