^Base excess is the quantity of base (HCO3-, in mEq/L) that is above or below the normal range in the body. A negative number is called a base deficit and indicates metabolic acidosis.
Hemorrhagic shock
Cardiogenic
Spinal shock
Acute valvular Regurgitation/VSD
Neurogenic shock
CHF
Undifferentiated shock 
Dysrhythmia