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We appreciate your visit to In medicine body surface area BSA is used to help determine proper dosage for medications The equation below models the relationship between BSA in square. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

In medicine, body surface area (BSA) is used to help determine proper dosage for medications. The equation below models the relationship between BSA in square meters, the patient's weight in kilograms, and the patient's height in centimeters.

Determine the height of a person who weighs 198 lbs and has a BSA of 2.1.

[tex]BSA = \sqrt{\frac{H \cdot W}{3131}}[/tex]

Answer :

To determine the height of a person who weighs 198 pounds and has a Body Surface Area (BSA) of 2.1 square meters, we can use the given formula for BSA, which is:

[tex]\[ BSA = \sqrt{\frac{H \cdot W}{3131}} \][/tex]

Here, [tex]\( H \)[/tex] is the height in centimeters, and [tex]\( W \)[/tex] is the weight in kilograms. Let's follow these steps to find the height:

1. Convert the Weight: First, we need to convert the weight from pounds to kilograms because the formula requires the weight in kilograms.

- We know that 1 pound equals approximately 0.453592 kilograms.
- So, if the person weighs 198 pounds, we can convert this weight to kilograms by multiplying:

[tex]\[ 198 \, \text{pounds} \times 0.453592 \, \text{kg/pound} = 89.811216 \, \text{kg} \][/tex]

2. Rearrange the BSA Formula: We need to isolate the height [tex]\( H \)[/tex] in the formula. Starting with:

[tex]\[ BSA = \sqrt{\frac{H \cdot W}{3131}} \][/tex]

- Square both sides to remove the square root:

[tex]\[ BSA^2 = \frac{H \cdot W}{3131} \][/tex]

- Rearrange to solve for [tex]\( H \)[/tex]:

[tex]\[ H = \frac{BSA^2 \times 3131}{W} \][/tex]

3. Calculate the Height: Now that we have the formula for [tex]\( H \)[/tex], we can substitute in the given BSA and the converted weight:

- Given BSA is 2.1.
- Plug in the values:

[tex]\[ H = \frac{(2.1)^2 \times 3131}{89.811216} \][/tex]

- Simplify and calculate the answer:

[tex]\[ H = \frac{4.41 \times 3131}{89.811216} \][/tex]

[tex]\[ H \approx 153.74 \, \text{cm} \][/tex]

The calculated height of the person is approximately 153.74 centimeters.

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Rewritten by : Barada