Final answer:
To calculate the burned body surface area using the Rule of Nines, 18% is assigned to the anterior chest and 4.5% is assigned to each anterior arm. Adding these percentages gives a total of 27% of the body surface area burned, so the correct answer is C) 0.27.
Step-by-step explanation:
The question asks about calculating the percentage of the body surface area burned on a patient using the Rule of Nines. The anterior chest (which is considered to be 18% of the body surface area as per the Rule of Nines) and both anterior arms (each arm is considered as 9% for the entire limb, so the anterior portion would be roughly 4.5%) have sustained burns. Therefore, by adding these percentages together:
The total surface area burned would be 18% + 9% = 27%.
Hence, the correct answer is C) 0.27, which represents 27% of the body surface area burned.