Final answer:
To treat the patient with 27% TBSA burns, 6,480 mL of intravenous fluids should be administered in the first 8 hours, calculated using the Parkland formula.
Step-by-step explanation:
The patient's intravenous fluid requirements are calculated using the Parkland formula, which is a guide used to determine the total fluid needs in the first 24 hours after a burn. The formula is 4 mL of crystalloid (lactated Ringer's solution) per kg of body weight per percentage of total body surface area (%TBSA) burned. For the first 8 hours, half of the total calculated amount is administered.
Here's the calculation for the given patient:
- Total fluid requirement in 24 hours = 4 mL/kg x body weight (kg) x %TBSA burnt
- Total fluid requirement in 24 hours = 4 mL/kg x 120 kg x 27%
- Total fluid requirement in 24 hours = 4 x 120 x 27 = 12,960 mL
- Fluid requirement in the first 8 hours = half of the total 24-hour requirement
- Fluid requirement in the first 8 hours = 12,960 mL / 2
- Fluid requirement in the first 8 hours = 6,480 mL
Therefore, the patient should be administered 6,480 mL of intravenous fluids in the first 8 hours following the burn injury.