A well-dressed 83-year-old woman is brought in by ambulance after being found walking the streets of the Lower East Side unaccompanied with a significant laceration to her right ankle. In the emergency department, she is hemodynamically stable with a blood-soaked bandage around her right ankle. During your interview, you begin to suspect the patient may be showing signs of altered mental status after she gives you unclear answers to your questions. While in the supply closet gathering suturing materials, a nurse informs you that the patient is gathering her belongings and adamantly requesting to leave. Despite your concerns, there's no time to page the on-call psychiatrist; you have to make the decision. Should this patient be allowed to leave against medical advice?