Final answer:
To calculate the 24-hour maintenance fluid requirements for a child weighing 8 lb, multiply the weight in kg by 24 and the result is the requirement in mL.
Step-by-step explanation:
To calculate the 24-hour maintenance fluid requirements for a child weighing 8 lb, we need to use a formula based on the weight. The formula is 4 mL per kg of body weight per hour. First, we convert the weight from pounds to kilograms. There are 2.20462 lb in 1 kg, so 8 lb is approximately 3.63 kg. Then, we multiply the weight in kg by 24 to get the 24-hour maintenance fluid requirement. Therefore, the correct calculation for this child's 24-hour maintenance fluid requirements is approximately 87.12 mL.