A
Circulation and hemorrhage control
B
Disability and neurologic evaluation
C
Breathing and ventilation
D
Airway maintenance with cervical spine protection
Explanation:The correct option is 'd'. The ATLS primary survey follows the ABCDE protocol to identify and treat life-threatening conditions. The absolute first priority is 'A' - Airway maintenance with cervical spine protection. Securing a patent airway while preventing secondary spinal cord injury takes precedence over all other interventions, including breathing and circulation, as airway failure leads to the most rapid demise.
Reference: American College of Surgeons Committee on Trauma. Advanced Trauma Life Support (ATLS) Student Course Manual. 10th ed. Chicago, IL: American College of Surgeons; 2018.