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HealthInfo Canterbury

Trial without catheter (trial of void)

A trial without catheter (also called trial of void) is used to see if you can pass urine when the catheter is removed from your bladder for a trial period. It can be done at home or in the hospital.

Your catheter is usually removed in the early hours of the morning. A nurse will remove your catheter. It may feel a little strange, but it shouldn't hurt.

When your catheter has been removed, you should carry out your normal activities. You can eat as normal. You should drink slightly more than normal but don't drink too quickly as this can cause problems. You should be passing urine normally within three to five hours. You should pass urine into a jug so you can measure the amount.

In hospital

If you're in hospital for the trial without catheter, a nurse will measure how much urine you've passed. You may also have a scan of your bladder to see if you have any urine left in it.

At home

If you're at home for the trial without catheter, you should record how much you drink and how much urine you pass. A nurse will either call you or visit you to check if you've passed urine and see how you're feeling.

If the trial shows you're passing urine normally, you won't need another catheter. If you can't pass urine, you'll need to have another catheter. A district nurse may do this or you may need to go to the hospital.

If you have problems passing urine overnight after the trial of void, you should go to an after-hours service, or the rural on-call service.

Written by HealthInfo clinical advisers. Endorsed by Urology Department, Canterbury DHB. Page created August 2018.

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Page reference: 441333

Review key: HIURS-53047