CSW | SIADH | Diabetes Insipidus | |
---|---|---|---|
Hypovolemia | Normovolemia or hypervolaemia | Hypovolemia | |
Decreased | Decreased | Increased | |
Increased | Increased | Decreased | |
Increased | Normal | Increased | |
Excessive secretion of sodium and water | Water retention due to elevated ADH (vasopressin) | Free water loss due to decreased ADH (vasopressin) |