A woman who weighs 50 kg is brought to you with severe burns over the body. You estimate that the non superficial burns cover 6% of body surface are. What is the rate of fluid to be given in the first 8 hour for this patient?
**Core Concept**
The question is testing the understanding of Parkland formula, a widely used method for calculating the fluid requirement in patients with severe burns. The Parkland formula estimates the total amount of fluid needed for the first 24 hours based on the percentage of body surface area burned and the patient's weight.
**Why the Correct Answer is Right**
To calculate the fluid requirement using the Parkland formula, we need to calculate the total amount of fluid needed for the first 24 hours. The formula is: Total fluid (in mL) = 4 mL x weight (in kg) x % TBSA burned. For the first 8 hours, half of the total fluid requirement is given. In this case, the patient weighs 50 kg and has 6% TBSA burned. The total fluid requirement is: 4 mL x 50 kg x 6% = 1200 mL. Half of this amount is given in the first 8 hours, which is 600 mL. The rate of fluid to be given in the first 8 hours is 600 mL/8 hours = 75 mL/hour.
**Why Each Wrong Option is Incorrect**
**Option A:** This is not the correct rate of fluid to be given in the first 8 hours. The Parkland formula calculates the total fluid requirement for 24 hours, and half of this amount is given in the first 8 hours.
**Option B:** This is not the correct rate of fluid to be given in the first 8 hours. The formula does not require the addition of 500 mL to the initial calculation.
**Option C:** This is not the correct rate of fluid to be given in the first 8 hours. The Parkland formula does not require the calculation of the total fluid requirement in mL/kg/%TBSA burned.
**Option D:** This is not the correct rate of fluid to be given in the first 8 hours. The Parkland formula does not require the calculation of the total fluid requirement in mL/%TBSA burned.
**Clinical Pearl / High-Yield Fact**
Remember that the Parkland formula is a widely used method for calculating the fluid requirement in patients with severe burns, but it is essential to adjust the fluid rate based on the patient's response to the fluid resuscitation. The rate of fluid can be adjusted based on the patient's urine output, blood pressure, and other clinical parameters.
**Correct Answer:**
4 mL x 50 kg x 6% = 1200 mL, half of this amount is given in the first 8 hours, which is 600 mL.