| Diagnostic Dilemma
SIADH vs. RSW |
| Both characterized by: |
| Association with intracranial diseases |
| Hyponatremia |
| Concentrated urine |
| Urinary (Na) usually>20 mEq/L |
| Normal renal/adrenal/thyroid function |
| Nonedematous |
| Hypouricemia |
| Increased FE urate |
| Only difference is volume status |
