Final answer:
The formula used to determine fluid replacement for the first 24 hours in burn patients is the Parkland formula, which calculates the total fluid volume needed based on the percentage of total body surface area burned.
Step-by-step explanation:
The formula used to determine fluid replacement for the first 24 hours in burn patients is known as the Parkland formula. It calculates the total fluid volume needed based on the percentage of total body surface area burned.
The Parkland formula is: 4 mL × body weight (kg) × % TBSA burned. This calculation gives the total fluid volume required in the first 24 hours.
For example, let's say a burn patient weighs 70 kg and has 20% total body surface area burned. Using the Parkland formula, the total fluid volume needed in the first 24 hours would be: 4 mL × 70 kg × 20% = 5600 mL or 5.6 L.