Reasons for the excess 58 CT scans using Canadian rules compared with actual requests
| Reason for excess scan | Number/58 |
|---|---|
| Reduced GCS | 21 |
| Suspected open or depressed skull fracture | 8 |
| Any sign of basal skull fracture | 1 |
| Age greater than or equal to 65 | 25 |
| Vomiting | 20 |
| Focal deficit | 1 |
| Unstable vital signs | 1 |
| Anticoagulant use | 0 |
| Seizure before assessment | 6 |
| Total | 83 |