| urethral pressure p. |
a record of the resistance of the urethra to fluid flow, measured as variations in urethral pressure (q.v.). A liquid or gas is pumped into the bladder with a catheter in place and the catheter is slowly withdrawn while measurements are taken of the pressure at various points in the urethra. It is usually done from the internal orifice to the external orifice in females and from the internal orifice to the sphincter urethrae muscle in males.
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