What is the primary purpose of the Primary Survey in TNCC, and list the components in order?

• A. Airway with cervical spine protection, Breathing, Circulation, Disability, Exposure/Environmental control
• B. Breathing, Airway with cervical spine protection, Circulation, Disability, Exposure/Environmental control
• C. Airway with cervical spine protection, Breathing, Circulation, Environment, Exposure/Environmental control
• D. Airway with cervical spine protection, Breathing, Circulation, Disability, Exposure/Environmental control

Answer: (A)

The primary concept being tested is the sequence used in the Primary Survey to rapidly identify and stabilize life-threatening conditions in trauma. The primary purpose is to secure the airway and cervical spine protection first, ensure adequate breathing, control circulation, assess neurologic status, and then uncover any hidden injuries while preventing hypothermia.

The components in order are: airway with cervical spine protection, breathing, circulation, disability, and exposure/environmental control. Securing the airway with spine protection is prioritized because an obstructed airway or unstable cervical injury can quickly become fatal. Once the airway is secured, you assess and support breathing to ensure adequate ventilation and oxygenation. Next, you evaluate circulation to control hemorrhage and maintain perfusion. After circulation, you assess disability to determine neurologic status and potential brain injury. Finally, you expose the patient to inspect for hidden injuries, while applying measures to prevent hypothermia through environmental control.