I know that when more than 50
Ml of urine is retained in the bladder
It's considered abnormal
Is there such way to measure abnormal amount of urine in the urethra after voiding
Is there any scientific data that discern which amount should be considered normal and which shouldn't ?
Post Void Residual, PVR for women is generally considered normal if less than 100 mls. However, there are no studies directly addressing this issue. Another definition of normal is if 80% of the total volume of the bladder, voided amount + PVR, is voided. PVR can be measured by ultrasound often called a bladder scan or by cath of the bladder. J. Kyle Mathews, MD
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