Calculateur de Poids Corporel Ajusté Gratuit
Calculez le poids idéal et le poids corporel ajusté pour le dosage des médicaments.
Ideal Body Weight
73.0 kg
Ideal Body Weight vs Height
Formule
Dosing Weight Calculations
Ideal Body Weight (Devine Formula)
Male: IBW = 50 + 2.3 x (height in inches - 60) Female: IBW = 45.5 + 2.3 x (height in inches - 60)
Adjusted Body Weight
AdjBW = IBW + 0.4 x (Actual Weight - IBW)
Adjusted body weight is used for drug dosing in obese patients (>20% above IBW) because many drugs do not distribute fully into adipose tissue.
Exemple Résolu
A 70-inch tall male weighing 110 kg.
- 01IBW = 50 + 2.3 x (70 - 60) = 73 kg
- 02AdjBW = 73 + 0.4 x (110 - 73) = 73 + 14.8 = 87.8 kg
- 03Percent over IBW = (110 - 73) / 73 x 100 = 51%
Questions Fréquentes
When should adjusted body weight be used?
Adjusted body weight is typically used when actual weight exceeds ideal body weight by more than 20-30%. Many antibiotics and chemotherapy agents use AdjBW for dosing.
What is ideal body weight?
IBW is a height-based weight estimate originally developed for drug dosing. It does not account for muscle mass or body composition.
Why not just use actual weight for all drugs?
Some drugs do not distribute well into fat tissue. Using actual weight in obese patients could lead to overdosing. Other drugs distribute well into fat and use actual weight.
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