In Class 2 hypovolemic shock, estimated blood loss is between which values?

In Class 2 hypovolemic shock, estimated blood loss is between which values?

• A. 500-1000 ml
• B. 1500-2000 ml
• C. 750-1500 ml
• D. >2000 ml

Answer: (C)

When assessing hypovolemic shock, we categorize blood loss by percentage of the total blood volume. For an average adult with about 5 liters of blood, Class II corresponds to roughly 750–1500 mL lost, which is about 15–30% of TBV. At this stage the patient typically shows tachycardia, tachypnea, anxiety or agitation, and a narrowing pulse pressure, with blood pressure often still maintained. The other ranges fit different classes: 500–1000 mL is usually Class I (mild), 1500–2000 mL corresponds to Class III (more severe, with significant hypotension and mental status changes), and over 2000 mL is Class IV (very severe, life-threatening).

When assessing hypovolemic shock, we categorize blood loss by percentage of the total blood volume. For an average adult with about 5 liters of blood, Class II corresponds to roughly 750–1500 mL lost, which is about 15–30% of TBV. At this stage the patient typically shows tachycardia, tachypnea, anxiety or agitation, and a narrowing pulse pressure, with blood pressure often still maintained. The other ranges fit different classes: 500–1000 mL is usually Class I (mild), 1500–2000 mL corresponds to Class III (more severe, with significant hypotension and mental status changes), and over 2000 mL is Class IV (very severe, life-threatening).