Parameter | Early signs | Late signs |
---|---|---|
Oxygen saturation | 90–95 % | <90 % |
Systolic blood pressure (mmHg) | 80–100 or 181–240 | <80 or >240 |
Heart rate | 40–49 or 121–140 | <40 or >140 |
Respiratory rate | 5–9 or 31–40 | <5 or >40 |
Glasgow coma scale | N/A | >2 point drop |