What is normal urine output for an elderly person?

Normal urine output for elderly people varies depending on factors such as age, health conditions, and fluid intake. However, a generally accepted range is around 800 to 2,000 milliliters (mL) per day. As people age, the kidneys' ability to concentrate urine may decline, leading to increased urine production (polyuria). Therefore, it's important for older individuals to stay hydrated but also monitor their urine output and seek medical advice if there are significant changes or concerns.