1. What is Body Surface Area (BSA)?

Definition: BSA is the calculated surface area of the human body, often used in medical calculations.

Purpose: It helps healthcare professionals determine medication dosages, chemotherapy regimens, and other medical treatments.

2. How Does the Calculator Work?

The calculator uses the Mosteller formula:

Where:

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

Explanation: The product of weight and height is divided by 3600, then the square root is taken to obtain BSA in m².

3. Importance of BSA Calculation

Details: BSA provides a more accurate measure than body weight alone for determining drug dosages and assessing metabolic mass.

4. Using the Calculator

Tips: Enter the patient's weight in kilograms and height in centimeters. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why use Mosteller formula instead of others?
A: The Mosteller formula is simple, validated, and widely accepted in clinical practice.

Q2: How accurate is this calculation?
A: It's accurate for most clinical purposes, though individual variations exist.

Q3: What units should I use?
A: Weight must be in kilograms (kg) and height in centimeters (cm).

Q4: Can I use pounds and inches?
A: No, convert pounds to kg (1 lb = 0.453592 kg) and inches to cm (1 in = 2.54 cm) first.

Q5: What's a normal BSA range?
A: Average BSA is about 1.7 m² for adult men and 1.6 m² for adult women.