Calculate Meter Squared For Dosing

Body Surface Area Formula (Mosteller):

\[ BSA = \sqrt{\frac{W \times H}{3600}} \]

Body Surface Area (m²):

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1. What is Body Surface Area (BSA)?

Definition: BSA is the calculated surface area of a human body, often used in medical dosing and physiological measurements.

Purpose: It helps healthcare professionals determine appropriate medication dosages, especially for chemotherapy and other drugs with narrow therapeutic windows.

2. How Does the Mosteller Formula Work?

The calculator uses the Mosteller formula:

\[ BSA = \sqrt{\frac{W \times H}{3600}} \]

Where:

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

Explanation: The formula calculates BSA by taking the square root of the product of weight and height divided by 3600.

3. Importance of BSA Calculation

Details: Accurate BSA calculation ensures proper drug dosing, minimizes toxicity risks, and improves treatment efficacy.

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 widely accepted, easy to calculate, and shows good agreement with more complex methods.

Q2: What's the typical BSA range for adults?
A: Average BSA is about 1.7 m² for adult men and 1.6 m² for adult women, but varies with body size.

Q3: When is BSA dosing particularly important?
A: For chemotherapy drugs, pediatric medications, and drugs with narrow therapeutic indices.

Q4: How accurate is this calculation?
A: It provides a good estimate, but individual variations may require clinical judgment.

Q5: Can I use pounds and inches?
A: This calculator uses metric units. Convert pounds to kg (1 lb = 0.453592 kg) and inches to cm (1 in = 2.54 cm) first.