Tag: Drug dosing

While Body Mass Index (BMI) has long been a standard screening tool, it fails to differentiate between fat and muscle mass, leading to inaccurate assessments for many individuals. Body Surface Area (BSA), a metric that incorporates both height and weight, is often cited as a more precise tool, especially in specific medical contexts where accurate metabolic mass is critical.

The human body's surface area, rather than its weight alone, is a more accurate indicator of metabolic mass, with the average adult having a BSA of approximately 1.7 m². This article explains what is BSA in body weight and why it serves as a critical medical metric for clinicians worldwide.