A 26 year-old man presents with a right 4th metacarpal fracture after an altercation. He is noted to have a serum Na 120. Additional labs include serum osm 240, urine Na 45, and urine osm 65.

• A 26 year-old man presents with a right 4th metacarpal fracture after an altercation. He is noted to have a serum Na 120. Additional labs include serum osm 240, urine Na 45, and urine osm 65.

• The best options for treating his hyponatremia is?

• 0.9% NS

• 3% NA

• Free water restriction

• Hydrocortisone

• No treatment