Carbon Dioxide Uroflowmetry

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Abstract
The use of pneumatic compression to determine flow rate is described. The procedure is best suited for physicians using CO2 instrumentation for a urodynamic assessment of patients since the CO2 cystometer is readily converted to a uroflowmeter. Values obtained with this method are similar to values reported in the literature using other techniques. When voided volumes are more than 200 ml the values for peak flow rate are reproducible within subjects and are volume-dependent.