Table 2 Injury or disease severity scoring as originally described by the National Advisory Committee on Aeronautics (NACA)

NACA 1

Injuries/diseases without any need for acute physician care

NACA 2

Injuries/diseases requiring examination and therapy by a physician, but hospital admission is not indicated

NACA 3

Injuries/diseases without an acute threat to life but requiring hospital admission

NACA 4

Injuries/diseases that can possibly lead to deterioration of vital signs

NACA 5

Injuries/diseases with an acute threat to life

NACA 6

Injuries/diseases transported after successful resuscitation of vital signs

NACA 7

Lethal injuries or diseases