Bsa Calculator Mosteller And Dubois

BSA Formulas:

Mosteller: \( BSA = \sqrt{\frac{H \times W}{3600}} \)

DuBois: \( BSA = 0.007184 \times H^{0.725} \times W^{0.425} \)

Mosteller BSA:

DuBois BSA:

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1. What is Body Surface Area (BSA)?

Body Surface Area (BSA) is the measured or calculated surface area of the human body. It is used in many medical contexts, including medication dosing, fluid management, and assessment of metabolic mass.

2. How Do the BSA Formulas Work?

The calculator uses two main BSA formulas:

Mosteller Formula: \( BSA = \sqrt{\frac{H \times W}{3600}} \)

DuBois Formula: \( BSA = 0.007184 \times H^{0.725} \times W^{0.425} \)

Where:

\( H \) — Height in centimeters (cm)
\( W \) — Weight in kilograms (kg)

Explanation: The Mosteller formula provides a simplified calculation that is easy to remember and use clinically. The DuBois formula is one of the earliest and most validated BSA equations, though slightly more complex.

3. Importance of BSA Calculation

Details: BSA is crucial for accurate medication dosing (particularly chemotherapy), calculating cardiac index, burn assessment, and nutritional support. Different formulas may be preferred in different clinical contexts.

4. Using the Calculator

Tips: Enter height in centimeters and weight in kilograms. Both values must be positive numbers. The calculator will provide results using both Mosteller and DuBois formulas.

5. Frequently Asked Questions (FAQ)

Q1: Which BSA formula is more accurate?
A: Both formulas have good correlation with measured BSA. The Mosteller formula is simpler and widely used, while DuBois was derived from direct measurements and is considered by some to be more precise.

Q2: What are typical BSA values?
A: Average BSA for adult men is about 1.9 m², for adult women about 1.6 m². Normal range is approximately 1.5-2.2 m² for adults.

Q3: When should I use which formula?
A: Mosteller is commonly used for chemotherapy dosing. DuBois may be preferred in research settings. Always follow institutional protocols.

Q4: Are there limitations to these formulas?
A: Both formulas assume typical body proportions and may be less accurate in extremes of body habitus (e.g., very tall/short, obese, or muscular individuals).

Q5: Can BSA be used for pediatric patients?
A: Yes, though some institutions prefer age-specific formulas for children. These formulas are generally applicable across age groups.