**Core Concept**
In cases of suspected cervical spine injury, maintaining a secure airway is crucial to prevent aspiration of blood, vomit, or other foreign material. This is a fundamental principle in trauma management, as it ensures adequate oxygenation and prevents further complications.

**Why the Correct Answer is Right**
The primary goal in managing a cervical spine injury is to maintain a patent airway. This involves ensuring that the airway is clear of debris and that breathing is adequate. The patient's airway can be compromised due to swelling, bleeding, or displacement of cervical spine structures. Maintaining the airway takes precedence over other aspects of cervical spine management, such as imaging or stabilization. This is because a secure airway is essential for providing adequate oxygenation and preventing further complications.

**Why Each Wrong Option is Incorrect**
**Option A:** X-ray is not the first line of management for a suspected cervical spine injury. While imaging is crucial in diagnosing cervical spine injuries, it should not take precedence over maintaining a secure airway.

**Option B:** Turning the patient's head to the side is a maneuver that may be used to assess for signs of a spinal cord injury, but it is not the first line of management. This maneuver can also compromise the airway, making it a less desirable option.

**Option D:** Stabilizing the cervical spine is an important aspect of managing cervical spine injuries, but it should not take precedence over maintaining a secure airway. In fact, attempting to stabilize the cervical spine without first ensuring a secure airway can be counterproductive and may worsen the situation.

**Clinical Pearl / High-Yield Fact**
In the management of cervical spine injuries, the "C-spine clearance" mnemonic can be helpful: C-spine clearance involves maintaining a secure airway (C), ensuring breathing is adequate (B), and protecting the cervical spine (P). This mnemonic can help clinicians prioritize the management of cervical spine injuries.

**Correct Answer Line**
✓ Correct Answer: C. Maintain airway.