Uroflometry

How the test is performed:

You are asked to sit on a portable toilet called a commode chair. You push a button on the chair 5 seconds before you urinate, then 5 seconds after you are finished. A graph of your urine output is produced that plots the volume of urine versus time.

How to prepare for the test:

Your health care provider may ask you to temporarily discontinue medications that can alter test results.

Do not urinate for 2 hours before the test, and increase the volume of fluids you drink so you will have plenty of urine for the test.

Do not place any toilet tissue in the urine receptacle.

Infants and children:
The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:

• preschooler test or procedure preparation (3 to 6 years)
• schoolage test or procedure preparation (6 to 12 years)
• adolescent test or procedure preparation (12 to 18 years)

How the test will feel:

The test involves only normal urination.

Why the test is performed:

This test is useful in evaluating urinary tract function and in the detecting of bladder outlet obstruction.