In Class 2 hypovolemic shock, what percent of blood volume is lost?

In Class 2 hypovolemic shock, what percent of blood volume is lost?

• A. 15-30%
• B. 5-10%
• C. 30-40%
• D. 40%

Answer: (A)

Classifying hypovolemic shock by how much blood is lost helps you gauge how well the body can compensate. In this moderate range, about 15-30% of total blood volume is lost. For an average adult with roughly 5 liters of blood, that’s around 750 to 1500 mL. The body ramps up sympathetic activity to preserve perfusion: heart rate rises, pulse becomes more rapid and the pulse pressure narrows, breathing becomes faster, and the skin may feel cool and clammy. Blood pressure can still be normal or only mildly reduced, and mental status is typically relatively preserved. This is a compensated stage where prompt fluid resuscitation is needed to prevent progression to more severe shock. Larger losses—30-40% or more than 40%—are associated with falling blood pressure, worsening mental status, and end-organ hypoperfusion, indicating more severe, decompensated shock.

Classifying hypovolemic shock by how much blood is lost helps you gauge how well the body can compensate. In this moderate range, about 15-30% of total blood volume is lost. For an average adult with roughly 5 liters of blood, that’s around 750 to 1500 mL. The body ramps up sympathetic activity to preserve perfusion: heart rate rises, pulse becomes more rapid and the pulse pressure narrows, breathing becomes faster, and the skin may feel cool and clammy. Blood pressure can still be normal or only mildly reduced, and mental status is typically relatively preserved. This is a compensated stage where prompt fluid resuscitation is needed to prevent progression to more severe shock. Larger losses—30-40% or more than 40%—are associated with falling blood pressure, worsening mental status, and end-organ hypoperfusion, indicating more severe, decompensated shock.