Final answer:
An 8-month-old child weighing 9.3 kg requires approximately 930 to 1116 ml of fluid per day. A 2-year-old weighing 28 pounds (~12.7 kg) needs about 1270 ml per day. A school-age child weighing 55 pounds (~25 kg) requires about 2000 ml of fluid per day.
Step-by-step explanation:
The daily fluid requirements for children vary based on weight and age. To calculate the fluid needs for an 8-month-old who weighs 9.3 kg, we can use a general guideline that infants need about 100-120 ml of fluid per kilogram of body weight per day. Therefore, the 8-month-old would need approximately 930 to 1116 ml per day to meet their daily fluid requirements.
For calculating the daily fluid requirement for a 2-year-old who weighs 28 pounds, we first need to convert pounds to kilograms. Using the conversion factor of 1 kilogram equals 2.20462 pounds, the child's weight in kilograms is approximately 28 / 2.20462 = 12.7 kg (rounded to the nearest tenth). Toddlers typically require about 100 ml of fluid per kilogram of body weight per day, so the fluid requirement for this child would be about 1270 ml per day.
The fluid requirement for a school-age child who weighs 55 pounds (which converts to 24.9 kg, rounded to 25 kg) can be estimated using a different guideline appropriate for their age group. School-age children (4-13 years) generally need about 1.5 liters per day, plus an additional 100 ml for every kilogram over 20 kg. Thus, this child would require 1.5 liters + 500 ml (for the additional 5 kg over 20 kg), totaling 2 liters or 2000 ml per day.