What is the acceptable urine output for a stable patient?

In a stable patient, an acceptable urine output is generally considered to be at least 0.5 mL/kg/h. For an average adult, this often translates to approximately 30 mL/h. This level of urine output indicates adequate kidney function and proper fluid balance within the body. When urine output falls below this threshold, it may suggest issues such as dehydration, acute kidney injury, or other underlying medical problems.

The choice of 30 mL/h aligns with clinical guidelines and provides a benchmark standard for assessing renal perfusion and function in patients. It is important in medical practice as it helps to monitor fluid status and the effectiveness of treatments administered to the patient. Maintaining this level of urine output is particularly crucial in various clinical settings, such as post-operative care and in patients with critical illness, to ensure preservation of kidney function and fluid homeostasis.