<prompt> Amount of blood loss in class II circulatory failureHaemorrhagic shock?1515-3030-4040  <response>: -Hemorrhagic shock has been divided into 4 classes according to ATLS course. Class 1 Class2 Class 3 Class 4 Blood volume lost as of total 15 15-30 30-40 40 Four Classes of Hemorrhagic Shock According to the ATLS course Parameter I II III IV Blood loss 0-15 15-30 30-40 40 CNS Slightly anxious Mildly anxious Anxious or confused Confused or lethargic Pulse beats min 100 100 120 140 Blood pressure Normal Normal Decreased Decreased Pulse pressure Normal Decreased Decreased Decreased Respiratory rate 14-20min 20-30min 30-40min 35min Urine mLhr 30 20-30 5-15 Negligible Fluid Crystalloid Crystalloid Crystalloid blood Crystalloid blood Base deficit 0 to -2 mEqL -2 to 6 mEqL -6 to -10 mEqL -10 mEqL or less -Please refer to the above table as many such questions are asked from the table. 