Question

this is a timed quiz. you will have 2 hours to complete this quiz.
the parkland formula is used to calculate the amount of fluid (in milliliters) that should be given to a patient with burns over their first 24 hours of care. well define our variables like this:
tbsa = percentage of total body surface area burned
w = weight in kg
to calculate the tbsa, youll use the rule of 9s.
each of the following represent approximately 9% of the human body:
head, left arm, right arm, upper front torso, upper back torso, lower front torso, lower back torso, upper left leg, upper right leg, lower left leg, lower right leg
once you know your variables, you can substitute them into parklands formula to find the amount of fluid given (in milliliters) over the first 24 hours of care:
fluid = 4·tbsa·w
you will give 50% of the fluid in the first 8 hours and 50% of the fluid over the last 16 hours.

Explanation:

Since the problem involves using the Parkland Formula (a medical formula for fluid calculation in burn patients) and the Rule of 9's (for calculating TBSA), the subfield under Natural Science is Medicine and Health. To solve, we need to know TBSA and weight (W) to substitute into \( \text{Fluid} = 4 \cdot TBSA \cdot W \). For example, if a patient has 20% TBSA and weighs 70 kg:

Step1: Identify variables

Let \( TBSA = 20 \), \( W = 70 \) kg.

Step2: Substitute into formula

\( \text{Fluid} = 4 \cdot 20 \cdot 70 \)
Calculate \( 4 \cdot 20 = 80 \), then \( 80 \cdot 70 = 5600 \) mL.

Answer:

The subfield is Medicine and Health. For a patient with \( TBSA = 20\% \) and \( W = 70 \) kg, the fluid is \( 5600 \) mL (example calculation).