| Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access |
| Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc |
| Journal website http://www.journalmc.org |
Case Report
Volume 7, Number 9, September 2016, pages 399-402
Cerebral Salt Wasting Syndrome and Systemic Lupus Erythematosus: Case Report
Figure

Table
| CSW | SIADH | |
|---|---|---|
| BUN: blood urea nitrogen; FEUrate: excretional fraction of urate; CSW: cerebral salt wasting; SIADH: syndrome of inappropriate antidiuretic hormone secretion. | ||
| Plasma volume | ↓ | Normal or ↑ |
| Water balance | Negative | Normal or ↑ |
| Serum osmolality | ↓ | ↓ |
| Signs and symptom of dehydration | Present in most cases | Absent |
| Hematocrit | ↑ or normal | Unchanged |
| Plasma BUN/creatine | ↑ or normal | ↓ |
| Urine sodium | ↑↑ | ↑ |
| Urine volume | ↑↑ | ↓ or normal |
| Uric acid | ↓ | ↓ |
| FEUrate after correction of hyponatremia | ↑ | Normal |
| Treatment | Normal or hypertonic saline | Water restriction |
| Fludrocortisone | Hypertonic saline and furosemide | |