What is the expected output for a normal adult patient in a 24-hour period?

• A. 500-1000 mL of urine
• B. 1000-1500 mL of urine
• C. 1500-2000 mL of urine
• D. 2000-2500 mL of urine

Answer: (C)

The expected urinary output for a normal adult patient in a 24-hour period typically ranges between 1500 to 2000 mL of urine. This range is considered standard for healthy adults under normal hydration levels and functioning renal systems.

Several factors can influence urine output, including fluid intake, temperature, activity level, and the status of the individual's renal function. However, the commonly accepted average quantity tends to settle within the parameters of 1500 to 2000 mL, which aligns with normal physiological processes, including filtration and excretion of waste products.

While other options provide ranges that may reflect low or high outputs, they do not meet the expectations set for average healthy adults. Outputs below 1500 mL suggest possible dehydration or insufficient fluid intake, while those exceeding 2000 mL may indicate polyuria, which could be symptomatic of underlying medical conditions such as diabetes or renal issues. Thus, the choice that accurately reflects the normal 24-hour urine output is the range between 1500 to 2000 mL.