For a patient exhibiting increased heart rate, elevated blood pressure, and a rigid jaw, what is the priority intervention?

When dealing with a patient who is showing signs of increased heart rate, elevated blood pressure, and a rigid jaw, the priority intervention focuses on addressing the potential for compromised respiratory function. The symptoms are suggestive of a serious condition, perhaps related to increased sympathetic nervous system activity or even a potential emergency such as status epilepticus or severe anxiety.

Ventilating with 100% oxygen becomes crucial in ensuring that the patient is receiving adequate oxygenation, especially if their airway is at risk due to the rigidity of the jaw. This symptom may indicate that the patient is unable to protect their airway or could be developing respiratory distress. By providing supplemental oxygen, the healthcare provider can mitigate the risk of hypoxia—an essential action in any acute medical situation where the patient's respiratory status might be unstable.

While the other options, such as administering pain relief, providing sedation, or positioning comfortably, may be relevant in different contexts, they do not address the immediate need to ensure sufficient oxygenation and ventilation. Therefore, the focus on providing 100% oxygen is a critical and appropriate response in this scenario.