Skip to main content


Table 2 National Committee on Aeronautics (NACA)

From: The epidemiology of medical emergency contacts outside hospitals in Norway - a prospective population based study

Score level Patient status
NACA 0 No injury or illness
NACA 1 Not acute life-threatening disease or injury
NACA 2 Acute intervention not necessary; further diagnostic studies needed
NACA 3 Severe but not life threatening disease or injury; acute intervention necessary
NACA 4 Development of vital (life threatening) danger possible
NACA 5 Acute vital (life threatening) danger
NACA 6 Acute cardiac or respiratory arrest
NACA 7 Death