Final answer:
The minimum daily urine output for a child weighing 47.3 kg is 470 ml. For a 9-year-old child weighing 31.7Kg with a foley catheter, the minimum expected urine output is around 32 ml/hr, rounded to the nearest whole number.
Step-by-step explanation:
To calculate the minimum daily urine output for a child weighing 47.3 kg, we use the guideline that the minimum level of urine production to maintain normal function is about 0.5 quarts or 0.47 liters per day. Since this figure is a general guideline rather than being weight-specific, we would consider this the minimum regardless of the child's weight. As such, the minimum daily urine output for the child would be 0.47 liters, which corresponds to 470 milliliters (rounded to the nearest whole number).
In the case of the 9-year-old child with a weight of 31.7Kg and a foley catheter, we can estimate the minimum urine output in ml/hr by using an age-based requirement. For children, a common rule of thumb is to expect a minimum urine output of 1 ml/kg/hour. Thus, for a child weighing 31.7 kg, the minimum expected urine output would be 31.7 ml/hr. This value should be used by healthcare providers to monitor urine output and ensure adequate kidney function.