BSA Formula:
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Definition: This calculator estimates body surface area (BSA) using the DuBois and DuBois formula based on weight and height.
Purpose: It helps medical professionals calculate BSA for drug dosing, chemotherapy regimens, and other clinical applications.
The calculator uses the formula:
Where:
Explanation: The formula provides an estimate of total body surface area based on anthropometric measurements.
Details: BSA is used to calculate drug dosages, assess metabolic mass, and evaluate physiological parameters in clinical settings.
Tips: Enter the patient's weight in kilograms and height in centimeters. All values must be > 0.
Q1: Why is BSA important in medicine?
A: BSA provides a more accurate measure of metabolic mass than body weight alone, which is crucial for proper drug dosing.
Q2: How accurate is the DuBois formula?
A: It's generally accurate for adults but may be less precise for very obese or very lean individuals and children.
Q3: Are there alternative BSA formulas?
A: Yes, other formulas include Mosteller, Haycock, and Boyd, though DuBois remains widely used.
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.
Q5: Can I use pounds and inches?
A: The formula requires metric units. Convert pounds to kg (1 lb = 0.4536 kg) and inches to cm (1 in = 2.54 cm).