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Bladder Outlet Obstruction Number

Purpose:

To use the bladder outlet obstruction number to identify men with obstruction due to benign prostatic hyperplasia.

Specialty:

Nephrology, Urology, Obstetrics & Gynecology, Pedatrics, Genetics

Objective:

clinical diagnosis, including family history for genetics

ICD-10:

N99, N40, N42

Description:

The Bladder Outlet Obstruction Number is a linear combination of maximum urinary flow rate, residual volume and prostate size. It can be used to diagnose bladder outlet obstruction in about 50% of patients with bladder outlet obstruction due to benign prostatic hyperplasia with a reliability over 90%.

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