10/19/2026
Body weight is a fundamental variable in anesthetic practice, influencing drug dosing, ventilator settings, fluid therapy, and perioperative risk assessment. However, actual body weight (ABW) does not always represent the physiologic compartment that determines the pharmacokinetics or pharmacodynamics of a medication.
Consequently, anesthesia providers and other clinicians may use ideal body weight (IBW), lean body weight (LBW), adjusted body weight...