BSA Dosing Calculator
BSA (Mosteller)
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BSA (Du Bois)
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Calculated Dose
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Body Surface Area and Drug Dosing
Mosteller: BSA = sqrt(weight_kg x height_cm / 3600). Du Bois: BSA = 0.007184 x w^0.425 x h^0.725.
BSA-based dosing accounts for metabolic differences. Average adult BSA: 1.7-2.0 m2.
For educational use only. Clinical dosing must account for renal/liver function and interactions.
Disclaimer: This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Always consult a qualified professional for decisions specific to your situation.
Frequently Asked Questions
What is BSA used for?
Chemotherapy dosing, burn assessment, cardiac index, some pediatric drug dosing.
Mosteller formula?
BSA = sqrt(weight_kg x height_cm / 3600). Simplest, most commonly used.
Normal BSA?
Average adult: 1.7-2.0 m2. Males ~1.9 m2, females ~1.6 m2. Newborns ~0.25 m2.
Why not just use weight?
BSA accounts for body composition and metabolic rate better, improving dosing accuracy.