Female 21yo of average height and weight brought into ED with diminished level of conscious (responded to sternum rub), vomiting, confusion, low bp, low ox level, and bradycardia. Friend who brought her in claimed she had one drink at a bar then told him something was wrong. He brought her in after she began losing consciousness. Based on symptoms and history, we narrowed it down to alcohol intoxication, drug overdose, or a head injury. I got off my ed shift before a diagnosis was made, so I'll update below once I can find out tomorrow. What would your protocols be in a case like this? When a pt is brought in with unknown loc? Stabilize and treat for drugs and alcohol overdose and run tests for head injury?