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 patient is admitted with failure to thrive secondary to bulimia nervosa. The nurse anticipates administering which medication? 

The patient brought to the emergency department by police was found in the middle of traffic, alternating between grandiose declarations and expressing a desire to commit suicide. On physical assessment, the patient is tachycardic and hypertensive. The nurse suspects which diagnosis will be made?