Derivation testing – triggers identified in five 20-sample case reviews
| Test site | No of triggers | Triggers identified |
|---|---|---|
| HMCAS∗- 1 | 4/20 (20%) | 3: Wrong dose of medication administration 1: A worsening trend (deterioration) in patient haemodynamic or mental status indicators |
| HMCAS∗- 2 | 0/20 (0%) | 0 |
| HMCAS∗- 3 | 4/20 (20%) | 1: EWS <4 2: SpO2<94 without oxygen administration 1: Chemical restraint or physical restraint |
| Mecklenburg † - 1 | 5/20 (25%) | 1: EWS‡ <4 2: Response time for any first responder >8 min in setting of haemorrhage, cardiac or respiratory arrest or anaphylaxis. 2: Same return response in 24 hours |
| Mecklenburg † - 2 | 10/20 (50%) | 6: Same return response in 24 hours 4: Wrong dose of medication administration |
| Total | 23/100 (23%) |
∗ HMCAS, Hamad Medical Corporation Ambulance Service, Doha, Qatar.
† Mecklenburg, Mecklenburg EMS, Mecklenburg, North Carolina, USA.
‡ EWS is a locally adapted version of the National Early Warning Score.26
EWS, early warning score; EMSTT, emergency medical services trigger tool; HMCAS, Hamad Medical Corporation Ambulance Service.