In Class 3 hypovolemic shock, estimated blood loss is between which value?

In Class 3 hypovolemic shock, estimated blood loss is between which value?

• A. 1500-2000 ml
• B. 750-1500 ml
• C. >2000 ml
• D. 100-500 ml

Answer: (A)

Classifying hypovolemic shock by how much blood is lost helps guide how aggressively to treat the patient. In adults, the four classes are defined by estimated blood loss. Class III corresponds to substantial blood loss, typically about 1500–2000 milliliters, which is roughly 30–40% of total blood volume. At this level, you’d expect tachycardia, a falling or narrowing pulse pressure with decreasing systolic blood pressure, altered mental status, cool clammy skin, and reduced urine output. It represents a severe stage of shock but not the most extreme; losses greater than about 2000 mL push into Class IV. So the estimated blood loss range for Class III is around 1500–2000 mL.

Classifying hypovolemic shock by how much blood is lost helps guide how aggressively to treat the patient. In adults, the four classes are defined by estimated blood loss. Class III corresponds to substantial blood loss, typically about 1500–2000 milliliters, which is roughly 30–40% of total blood volume. At this level, you’d expect tachycardia, a falling or narrowing pulse pressure with decreasing systolic blood pressure, altered mental status, cool clammy skin, and reduced urine output. It represents a severe stage of shock but not the most extreme; losses greater than about 2000 mL push into Class IV. So the estimated blood loss range for Class III is around 1500–2000 mL.