A typical adult chest cavity can bleed this much into each side for a total of...

• A. 500, 1000
• B. 1500, 3000
• C. 1000, 2000
• D. 2000, 4000

Answer: (B)

Think about how much blood the chest cavity can hold when there’s a bleed inside the chest. In Tactical Combat Casualty Care, a practical field estimate is that about 1,500 mL of blood can collect in each side of the chest (each pleural space) before the situation becomes critically unstable. So, together, that’s about 3,000 mL in both sides.

This makes the choice with 1,500 mL per side and 3,000 mL total the best fit because it matches the commonly cited field threshold for significant intrathoracic hemorrhage. Once both sides accumulate around this amount, ventilation and circulating volume are severely affected, guiding urgent hemorrhage control and rapid transport decisions. The other options either understate or overstate the typical compensable bleeding volume in each side and total, so they don’t align with the standard clinical estimate used in this context.