Table 1.
Groups 1 and 2 TBI-related signs and symptoms | ||
Group 1 signs/symptoms | Dazed/foggy/confused Memory problems Loss of consciousness |
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Group 2 signs/symptoms | Nausea or vomiting Headache/pressure in head Dizziness/poor balance Change in vision Poor concentration Sensitivity to noise/light |
Irritable/change in mood Drowsiness/change in sleep Speech problems Hearing problems Weakness/numbness |
Criteria and categorisation of levels of certainty of TBI: | ||||
Documentation of injury event? | Group 1 signs/symptoms | Group 2 signs/symptoms | CT, MRI or X-ray imaging is positive for TBI? | |
High | Yes (and) | 1 or more (or) | 3 or more (or) | Yes |
Medium | Yes (and) | N/A | 2 (or) | Suspected |
Low | Yes (and) | N/A | Only 1 (and) | No |
None | Yes (and) | N/A | No | No |
No | N/A | N/A | N/A |
CT scan, Computed tomography; MRI, Magnetic resonance imaging; N/A, not applicable.