BSA Calculator for Medication Doses

What is Body Surface Area (BSA)?

Body Surface Area (BSA) is a measurement used in many medical tasks, including determining the correct dosages for medications and assessing metabolic mass. It provides a more accurate measure of the body's surface area than simple height and weight measurements.

Formulas

Here are the formulas used for calculating dose based on BSA:

Du Bois formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times 0.007184 \times H^{0.725} \times W^{0.425} \)
Mosteller formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times \sqrt{\frac{H \times W}{3600}} \)
Haycock formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times 0.024265 \times W^{0.5378} \times H^{0.3964} \)
Gehan and George formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times 0.0235 \times W^{0.51456} \times H^{0.42246} \)
Boyd formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times 0.03330 \times W^{(0.6157 - 0.0188 \times \log_{10}(W))} \times H^{0.3} \)
Fujimoto formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times 0.008883 \times W^{0.444} \times H^{0.663} \)
Takahira formula for BSA dosing: \( \text{Dose} = \text{BSA Based Dose} \times 0.007241 \times W^{0.425} \times H^{0.725} \)
Schlich formula for women: \( \text{Dose} = \text{BSA Based Dose} \times 0.000975482 \times W^{0.46} \times H^{1.08} \)
Schlich formula for men: \( \text{Dose} = \text{BSA Based Dose} \times 0.000579479 \times W^{0.38} \times H^{1.24} \)