Uroflometry

Normal values:

Normal values vary depending on age and sex:

• Age: 4 to 7
  • The average flow rate for males and females is 10 ml/sec

• Age: 8 to 13
  • The average flow rate for males is 12 ml/sec and 15 ml/sec for females.

• Age: 14 to 45
  • The average flow rate for males is 21 ml/sec and 18 ml/sec for females.

• Age: 46 to 65
  • The average flow rate for males is 12 ml/sec and 15 ml/sec for females.

• Age: 66 to 80
  • The average flow rate for males is 9 ml/sec and 10 ml/sec for females.

What abnormal results mean:

If the flow rate is increased, there may be a decrease in the resistance to urine flow. Several circular muscles that normally regulate urine flow, and if any becomes weak or dysfunctional, increased urine flow and urinary incontinence may result.

If there is a decrease in urine flow, a bladder outlet obstruction may exist.