Hyponatremia

Question: Patient had brain tumor resection and now has LOW Na, HIGH urine output, HIGH urine sodium - Diagnosis? and Explain difference between Cerebral salt wasting and SIADH
Answer: Cerebral salt wasting.  SIADH will also have LOW Na but lower to normal UOP who are euvolemic

Hyponatremia

Question: 70 yo male becomes unresponsive and has a seizure after TURP with Na of 112 - Management?
Answer: 3% normal saline to increase Na by 1mEq/hr until at least 130