Estimate post-void residual urine volume from abdominal ultrasound.
Estimate post-void residual urine volume from abdominal ultrasound.: computes and outputs results from the input parameters.
| Item | Formula | Source-Standard |
|---|---|---|
| Estimation formula | Residual volume is estimated as the product of three diameters times an empirical factor | EAU Guidelines on Management of Non-Neurogenic Male Lower Urinary Tract Symptoms, EAU Guidelines Office, 2024 |
| Clinical cutoff | An increased residual suggests impaired emptying and is read with symptoms | EAU Guidelines on Management of Non-Neurogenic Male Lower Urinary Tract Symptoms, EAU Guidelines Office, 2024 |
| Repeat testing | A single reading is affected by hydration; repeat measurement is advised | Abrams P et al. Neurourol Urodyn 2002;21:167-178 (ICS standardisation of lower urinary tract function) |