Review Article
Preoperative Assessment of Adult Patients for Intracranial Surgery
Table 3
Differences between diabetes insipidus and syndrome of inappropriate antidiuretic hormone.
| | Diabetes insipidus | Syndrome of inappropriate | | antidiuretic hormone |
| Presentation | Polyuria Thirst (awake patients) | Hyponateriamia | | | | Serum sodium | Increased 145 mEq/L | Decreased 135 mEq/L | | | | Serum osmolarity | High 310 mOsm/L | Low/hypotonic 275 mOsm/L | | | | Urine volume | Increased volume 4 L/day | Low | | | | Treatment | Supportive fluid replacement and DDAVP | Fluid restriction with hypertonic sodium correction if serum sodium 120 mEq/L |
|
|