Adjusted body weight
Ideal body weight plus 40% of the excess, for dosing in patients above ideal weight.
Inputs
0 of 3SexUsed by the equation
Actual (total) body weight
When to use
- Patients whose actual weight is well above ideal (often 120% to 130% of IBW or more, by protocol).
Pearls and pitfalls
- Not meaningful when actual weight is at or below IBW.
- 0.4 is the common factor; some drug-specific protocols use 0.3 or 0.5.
Why use
Shows IBW, actual weight, and percent of IBW next to the adjusted value, so the decision to adjust is visible.
- where
- AdjBW
- Adjusted body weight, kg
- IBW
- Ideal body weight, kg
- TBW
- Actual (total) body weight, kg