Which letter in the KABCO scale represents an incapacitating injury?

• A. K
• B. A
• C. B
• D. O

Answer: (B)

Injury severity on the KABCO scale is arranged from most to least severe: a fatal outcome, an incapacitating injury, a non-incapacitating injury, a possible injury, and no injury. An incapacitating injury is one that prevents the person from walking or continuing normal activities and typically requires medical treatment beyond basic first aid. This level represents injuries with significant functional impairment. The other labels describe less severe or different outcomes: fatal means the person does not survive, non-incapacitating means injuries do not prevent normal activity, possible injury indicates uncertainty or minor injury, and no injury means there is no physical injury. In your study materials, the label used for incapacitating injuries is the symbol assigned to that level, so verify the chart in your course to map it correctly.