Urine output sensing without use of an indwelling catheter, and associated systems, devices, and methods

One or more non-transitory computer-readable medium having instructions that, when executed by one or more processors, cause a fluid therapy system to perform operations comprising:

• obtaining multiple inputs of urine output volume data from a patient over a time period and without using an indwelling catheter, wherein the multiple inputs include a first input obtained at a first time, and a second input obtained at a second time at least 30 minutes after the first time;
• determining an accumulated volume of urine output for the patient by adding the first input to the second input;
• determining an estimated urine output rate for the patient over the time period by dividing the accumulated volume of urine output by the time period;
• and
• adjusting a hydration fluid rate at which a hydration fluid is provided to the patient and/or a diuretic dosage rate at which a diuretic is provided to the patient based at least partially on the estimated urine output rate.

One or more non-transitory computer-readable medium having instructions that, when executed by one or more processors, cause a fluid therapy system to perform operations comprising:

• obtaining over a time period multiple inputs of urine output volume data from a patient using a non-indwelling catheter, wherein the multiple inputs include a first input obtained at a first time, and a second input obtained at a second time at least 30 minutes after the first time;
• determining an estimated urine output rate for the patient based at least partially on the first input, the second input, and the time period;
• and
• obtaining a hydration fluid rate at which a hydration fluid is provided to the patient and/or a diuretic dosage rate at which a diuretic is provided to the patient based at least partially on the estimated urine output rate.