Patient Parameters
Body Mass Index (BMI)
--kg/m²
--
Body Surface Area (BSA)
--m²
Reference & Formulas
BMI Classifications (WHO Guidelines)
| Category | BMI Range (kg/m²) |
|---|---|
| Severe Thinness | < 16.0 |
| Moderate Thinness | 16.0 - 16.9 |
| Mild Thinness | 17.0 - 18.4 |
| Normal Weight | 18.5 - 24.9 |
| Overweight | 25.0 - 29.9 |
| Obese Class I | 30.0 - 34.9 |
| Obese Class II | 35.0 - 39.9 |
| Obese Class III | ≥ 40.0 |
Body Surface Area (BSA) provides a more accurate measure of a patient's metabolic mass than body weight alone. It is widely used in clinical practice for calculating doses of narrow-therapeutic-index drugs, such as chemotherapeutics.
BSA (Mosteller) = √ [ (Height (cm) × Weight (kg)) / 3600 ]