How do saline iv affect lungs?

Saline IV solutions can affect the lungs primarily through their impact on fluid balance in the body. Administering excessive saline may lead to fluid overload, potentially causing pulmonary edema, where fluid accumulates in the lungs, impairing gas exchange. Additionally, in patients with pre-existing lung conditions, excess saline can exacerbate respiratory distress. Careful monitoring of fluid administration is crucial to avoid these complications.