Final answer:
After log-rolling the patient to a supine position, your partner should open the airway with the jaw-thrust maneuver. In this scenario, you should call for emergency medical care immediately.
Step-by-step explanation:
To address this situation, you should take the following steps:
- First, with the patient in a supine position, your partner should open the airway using the jaw-thrust maneuver.
- Next, you need to address the issues of unresponsiveness, copious amounts of blood and large debris in the mouth, and slow, irregular respirations.
- Call for emergency medical care immediately. These signs indicate a potentially life-threatening situation, and the patient requires professional medical assistance.