Hypovolaemic Shock
| Grade I | Grade II | Grade III | Grade IV | |
|---|---|---|---|---|
| Blood loss | <750ml | 750-1500ml | 1500-2000ml | >2000ml |
| Blood loss (% volume) | <15% | 15-30% | 30-40% | >40% |
| Pulse | normal | tachy(>100) | tachy (>120) | tachy (>140) & weak |
| Blood pressure | normal | normal/raised diastolic | lowered systolic (<100mmHg) | very low (systolic <70mmHg) |
| Mental state | normal | agitated | confused | fluctuating conscious level/coma/ |
| Urine output | >30ml/h | 20-30ml/h | 5-15ml/h | <5 ml/h |
| Respiratory rate | normal | 20-30 | >30 | >35 |