CHAD2 scoring system for assessing thromboembolic risk
| Condition | Points | |
|---|---|---|
| C | Congestive heart failure | 1 |
| H | Hypertension: blood pressure consistently above 140/90 mm Hg (or treated hypertension on medication) | 1 |
| A | Age ≥75 years | 1 |
| D | Diabetes mellitus | 1 |
| S2 | Prior Stroke or TIA or Thromboembolism | 2 |
TIA, transient ischemic attack.