no formal consensus (ICS 2016; ICI-RS 2023); the most used binary cut-off is ≥100 mL, and that is what the automatic check applies. The local service protocol is stricter: >30 mL is already recorded as abnormal. Measure soon after voiding and interpret with symptoms and pre-void volume — a single measurement varies widely.正常: <50 mLcontextual zone: 50–99 mL高架: ≥100 mLinadequate emptying: >200 mLchronic retention (AUA): >300 mL✓ 在报告中自动应用来源: ICS teaching module 2016 / ICI-RS 2023 / EAU / Lukacz 2006 / Milleman 2004 / Wong 2017 / Protocolo local
分类与计算器
无效后残留 — 共识阅读
范围
阅读
评论
< 50 mL
普通的
Normal in the literature. The local service protocol is stricter and already records >30 mL as abnormal.
50–99 mL
Contextual zone
Interpret with symptoms and pre-void volume. There is no formal consensus (ICS 2016; ICI-RS 2023).
≥ 100 mL
Elevated residual
Most used binary cut-off in the literature (Lukacz 2006; Milleman 2004; Wong 2017) and the one applied by the automatic check.
> 200 mL
排空不当
提示排尿功能障碍或阻塞,具体取决于具体情况。
> 300 mL
Chronic retention
AUA 使用持续 >300 mL 作为慢性潴留的体积定义。
> 400 mL
尿潴留
一般治疗为尿潴留。
使用上面的计算器计算排尿后体积(以 mL 为单位)。预排空体积是可选的,用于计算残留百分比。
来源: Protocolo local / Ministério da Saúde BR 2020 / ICS teaching module / StatPearls PVR / AUA white paper
肾积水 — 超声分级
年级
寻找
解释
缺席的
Nondilated collecting system
没有障碍性环境时正常。
轻度
早期肾盏/骨盆扩张,乳头保留
真实发现,但可能取决于水合作用、膀胱充盈或变异。
中等
圆形肾盏和消失的乳头
Higher suspicion for obstruction; correlate with pain, ureter and ureteric jet.