You’re on call and it is 0200AM. Due to IT problems, lab results for Sidney Hara a 78 year old female just got reported, the nurse calls you immediately. She is a 78 year female with diabetes, hypertension, and a 50 plus pack year history of smoking. She was brought in by her son for failure to thrive over the past couple months. You recall on your exam that she looked quite cachexic, but her fluid status appeared euvolemic. She is currently on 3L O2 nasal prong, and has an IV of NS going at 75ml /hr. The nurse is concerned about a sodium level of 128. What could be causing this?