Notes and references
- Ideal Body Weight (IBW) – Devine formula. For males: 50 kg + 2.3 kg for each inch over 5 ft; For females: 45.5 kg + 2.3 kg for each inch over 5 feet.
Not validated for heights below 152.4 cm/5 ft.
- Adjusted Body Weight: IBW + 0.4 × (Actual weight in kg – IBW).
- Lean Body Weight – Janmahasatian formula. For males: LBM = (9270 × W) / (6680 + 216 × BMI);
For females: LBM = (9270 × W) / (8780 + 244 × BMI).
Hebbes CP, Thompson JP. Pharmacokinetics of anaesthetic drugs at extremes of body weight. BJA Educ. 2018;18(12):364-370. doi:10.1016/j.bjae.2018.09.001
Supplementary Table 1 - Summary of recommendations for drug dosing in the morbidly obese
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