Table 4.
Diagnostic tests and procedures
| Chest X-Ray | Basic Metabolic Panel | TSH | Urine Osmolality | ACTH Stimulation Test | MRI | Chest CT with or without Abdominal Scan | |
| Initial Evaluation | |||||||
| Patients with CHF, Cirrhosis, Renal Failure, or Taking Diuretics | 100% | 100% | 100% | 0% | 0% | 0% | 0% |
| Patients with SIADH | 100% | 100% | 100% | 100% | 100% | 25% | 25% |
| Patients with All Other Etiologies | 100% | 100% | 100% | 100% | 100% | 0% | 0% |
| Follow-Up Visits | |||||||
| Initial Treatment in Inpatient Setting | 100% | 100% | 0% | 0% | 0% | 0% | 0% |
| Initial Treatment in ER Setting | 100% | 100% | 0% | 0% | 0% | 0% | 0% |
| Initial Treatment in Office Setting | 80%–90% | 90% | 0% | 0% | 0% | 0% | 0% |