The nurse is caring for a patient with Alzheimer disease (AD). When the family comes to visit, they are excited to hear the patient talk about when he was a child and tell the nurse that they think his memory is returning. Which statement by the nurse is appropriate?

The older adult patient is brought to the emergency department with sudden onset confusion, agitation, and hallucinations. The patient's past medical history is significant for type 2 diabetes managed with glyburide, anxiety managed with lorazepam, and insomnia managed with zolpidem. Upon assessment, the patient's heart rate and rhythm are regular, lungs are clear to auscultation, and bowel sounds are present. Vital signs are normal, with exception of a slightly elevated heart rate. Which is the most likely cause of the patient's symptoms?

The patient is brought to the emergency room by friends after a night of drinking alcohol. The patient is unable to speak clearly, appears to fall asleep while talking, and cannot stand alone. The nurse anticipates which blood alcohol level?