A 23-year-old female presents with urinary frequency absent of infection. The f

A 23-year-old female presents with urinary frequency absent of infection. The final diagnosis is Diabetes Insipidus. She is treated with dDAVP.
1. What would you expect her sodium level would be, high or low? Defend your answer.
2. Her osmolarity is elevated. Why?
3. Compare and contrast central vs. nephrogenic Diabetes Insipidus.
4. Explain the mechanism of dDAVP.
5. Defend your answer with at least 3 scholarly references in the last 5 years.