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Weight-based dosing calculates medication amounts proportional to a patient's body weight to achieve therapeutic plasma concentrations. Essential for paediatrics, oncology, and narrow therapeutic index drugs.
Guide étape par étape
- 1Total dose = weight (kg) × dose per kg (mg/kg)
- 2Volume = total dose / concentration
- 3Always confirm with British National Formulary (BNF) or pharmacist
- 4Round to practical syringe volumes
Exemples résolus
Entrée
Child 25kg · amoxicillin 25mg/kg · suspension 250mg/5mL
Résultat
Dose = 625mg · Volume = 12.5mL
25×25=625mg; 625÷50=12.5mL (250mg/5mL=50mg/mL)
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