Question: what are the four stages of hypovolemic shock?
Answer: Loss of up to 750 cubic centimeters (cc) or milliliters (mL) of blood, up to 15% of your total volume. ... 
Loss of 750 to 1,500 cc of blood. ... 
Loss of 1,500 to 2,000 cc of blood, about a half-gallon. ... 
Loss of more than 2,000 cc of blood, more than 40% of your total blood volume.