QuestionJune 4, 2025

Burn involving the entire trunk anterior and posterior Face (front of the head) Pt weighs 110pounds 1. Calculate the amount of fluid needed for the first 8 hours 2. At what rate will the fluid be administered?

Burn involving the entire trunk anterior and posterior Face (front of the head) Pt weighs 110pounds 1. Calculate the amount of fluid needed for the first 8 hours 2. At what rate will the fluid be administered?
Burn involving the entire trunk anterior and posterior Face (front of the head) Pt weighs 110pounds 1. Calculate the amount of fluid needed for the first 8 hours 2. At what rate will the fluid be administered?

Solution
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Answer

4050 mL for the first 8 hours; administer at 506.25 mL/hour. Explanation 1. Calculate Total Body Surface Area (TBSA) Burned Use the Rule of Nines. Trunk anterior and posterior is 36%, face is 4.5%. Total TBSA = 36% + 4.5% = 40.5%. 2. Convert Weight to Kilograms Convert pounds to kilograms: 110 \text{ lbs} \times \frac{1 \text{ kg}}{2.2 \text{ lbs}} = 50 \text{ kg}. 3. Calculate Fluid Requirement Using Parkland Formula **Parkland Formula**: 4 \, \text{mL} \times \text{TBSA} (\%) \times \text{weight (kg)}. Fluid needed = 4 \, \text{mL} \times 40.5 \times 50 = 8100 \, \text{mL} over 24 hours. 4. Calculate Fluid for First 8 Hours Half of total fluid in first 8 hours: \frac{8100}{2} = 4050 \, \text{mL}. 5. Calculate Rate of Administration Rate = \frac{4050 \, \text{mL}}{8 \, \text{hours}} = 506.25 \, \text{mL/hour}.

Explanation

1. Calculate Total Body Surface Area (TBSA) Burned<br /> Use the Rule of Nines. Trunk anterior and posterior is 36%, face is 4.5%. Total TBSA = 36% + 4.5% = 40.5%.<br /><br />2. Convert Weight to Kilograms<br /> Convert pounds to kilograms: $110 \text{ lbs} \times \frac{1 \text{ kg}}{2.2 \text{ lbs}} = 50 \text{ kg}$.<br /><br />3. Calculate Fluid Requirement Using Parkland Formula<br /> **Parkland Formula**: $4 \, \text{mL} \times \text{TBSA} (\%) \times \text{weight (kg)}$. <br /> Fluid needed = $4 \, \text{mL} \times 40.5 \times 50 = 8100 \, \text{mL}$ over 24 hours.<br /><br />4. Calculate Fluid for First 8 Hours<br /> Half of total fluid in first 8 hours: $\frac{8100}{2} = 4050 \, \text{mL}$.<br /><br />5. Calculate Rate of Administration<br /> Rate = $\frac{4050 \, \text{mL}}{8 \, \text{hours}} = 506.25 \, \text{mL/hour}$.
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