Table 4.

A new base deficit-based classification of hypovolemic shock

	Class I	Class II	Class III	Class IV
Shock	No shock	Mild	Moderate	Severe
Base deficit at admission, mmol/L	≤ 2	> 2.0 to 6.0	> 6.0 to 10.0	> 10.0
Need for blood products	Watch	Consider	Act	Be prepared for massive transfusion