Table 1: Classification of haemorrhage.
Pulse rate in beats/min; Respiratory rate in breaths/min; Urine output in ml/hour.
Class
Parameter I II III IV
Blood Loss (ml) <750 750-1500 1500-2000 >2000
Blood Loss (%) <15% 15-30% 30-40% >40%
Pulse Rate <100 >100 >120 >140
Blood Pressure Normal Decreased Decreased Decreased
Respiratory Rate 14-20 20-30 30-40 >35
Urine Output >30 20-30 5-15 Negligible
CNS Symptoms Normal Anxious Confused Lethargic