Calculate BSA Mosteller Formula

Mosteller Formula:

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

Body Surface Area (m²):

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1. What is the Mosteller BSA Formula?

Definition: The Mosteller formula calculates body surface area (BSA) based on a person's weight and height.

Purpose: BSA is used in medical practice for drug dosage calculations, chemotherapy regimens, and other clinical assessments.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

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

Explanation: The product of weight and height is divided by 3600, and the square root of this value gives the BSA in m².

3. Importance of BSA Calculation

Details: Accurate BSA calculation helps determine proper medication dosages, especially for drugs with narrow therapeutic windows.

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: 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.

Q3: Can this be used for children?
A: Yes, the Mosteller formula is appropriate for all ages.

Q4: How accurate is this formula?
A: It's accurate to within 1-2% of more complex calculations in most cases.

Q5: When would I need to calculate BSA?
A: For chemotherapy dosing, renal function assessment, and other medication calculations where body size matters.