Urimeter (hourly urine meter)
A small-volume graduated chamber (typically 500 mL) placed inline between the urinary catheter and the main collection bag, with a fine (milliliter-level) scale at the low end of its range and a needleless sampling port.
How it is used
Precise hourly urine-output monitoring in ICU and post-urologic-surgery patients, where small volume changes are clinically relevant for assessing renal and fluid status; not to be confused with a urinometer/hydrometer, which measures urine specific gravity.
Sources
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