Gentamicin for obese patients should be dosed based on adjusted body weight (ABW)
Use ideal body weight
(IBW) for others
ABW = IBW + 0.4 (Actual weight – IBW)
IBW = 50kg + 2.3kg (each inch over 5 feet)
IBW = 45.5kg + 2.3kg (each inch over 5 feet)