The nurse receives report on the 6-month-old child with a congenital abnormality of the hip who is in Bryant's traction. Which observation upon entering the patient's room indicates the patient is positioned appropriately? 

The nurse is caring for a 48-year-old female diagnosed with acute kidney injury. Laboratory results reveal that the patient is experiencing mild hyperkalemia. Which independent nursing action is appropriate to manage the patient's hyperkalemia?

The nurse is taking the history of a patient found in the street trying to stop traffic. The patient admits to multiple recent long episodes of severe depression. Then, 12 days ago, the patient described feeling elated and “on top of the world.” He recounts many days planning far-reaching projects that would “change the world,” and required only an hour of sleep once or twice. Patient is talking continuously in a rapid, rushed manner and cannot seem to complete a thought without jumping to the next. He sometimes sees things that others do not see. The nurse anticipates which diagnosis?