BSA Calculator Dubois

BSA Formula (DuBois):

\[ \text{BSA} = 0.007184 \times W^{0.425} \times H^{0.725} \]

Body Surface Area (m²):

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1. What is the DuBois BSA Calculator?

Definition: This calculator estimates body surface area (BSA) using the DuBois formula based on weight and height measurements.

Purpose: It helps medical professionals determine medication dosages, assess metabolic mass, and evaluate physiological processes.

2. How Does the Calculator Work?

The calculator uses the DuBois formula:

\[ \text{BSA} = 0.007184 \times W^{0.425} \times H^{0.725} \]

Where:

\( \text{BSA} \) — Body Surface Area (square meters)
\( W \) — Weight (kilograms)
\( H \) — Height (centimeters)

Explanation: The formula empirically relates body surface area to weight and height through non-linear exponents.

3. Importance of BSA Calculation

Details: BSA is crucial for accurate drug dosing (chemotherapy, antibiotics), fluid resuscitation, and nutritional requirements.

4. Using the Calculator

Tips: Enter weight in kilograms and height in centimeters. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why use DuBois formula over others?
A: The DuBois formula is the most validated and widely used BSA estimation method in clinical practice.

Q2: How accurate is the DuBois formula?
A: It's generally accurate for adults but may overestimate BSA in obese patients and underestimate in very muscular individuals.

Q3: Can this be used for children?
A: While sometimes used, pediatric-specific formulas (like Haycock) may be more appropriate for children.

Q4: What's a normal BSA range?
A: Average BSA is about 1.7 m² for adult men and 1.6 m² for adult women, varying with body size.

Q5: How do I convert pounds/inches to kg/cm?
A: 1 kg = 2.2 lbs; 1 inch = 2.54 cm. Use our unit converter tool if needed.