Final answer:
According to the Parkland formula, the patient should receive approximately 18 liters of fluid in the first 24 hours, which can be divided into 4.5 liters in the first 8 hours.
Step-by-step explanation:
The Parkland formula is used to estimate the fluid replacement needs of burn patients. According to the Parkland formula, a burn patient should receive 4 mL of fluid per kilogram of body weight for each percent of total body surface area (TBSA) burned, over the first 24 hours. In this case, the patient weighs 180 pounds, which is equivalent to approximately 81.82 kilograms. The patient has 55% of second and third-degree burns, so the calculation would be:
Fluid volume = 4 mL x body weight x burned TBSA
= 4 mL x 81.82 kg x 55%
= 18,000 mL or 18 L
Therefore, the patient should receive approximately 18 L of fluid in the first 24 hours, which can be divided into 4.5 L in the first 8 hours.