If a crush injury is freed from entrapment within six hours, the amount of tissue damage is generally minimal.

• A. Minimal
• B. Moderate
• C. Severe
• D. Unknown

Answer: (A)

The key idea is that tissue viability during a crush injury depends on how long the area remains without adequate blood flow. When entrapment is released within about six hours, most cells have not yet reached irreversible injury from ischemia, so they can recover once perfusion is restored. This means the amount of tissue damage is generally minimal because the critical threshold for permanent cell death hasn’t been crossed for most of the involved tissue.

Of course, even with quick release, there can still be swelling, nerve irritation, and a risk of systemic effects like rhabdomyolysis after reperfusion, so clinical management focuses on monitoring for those complications. But in terms of direct tissue loss from ischemia, six hours or less typically results in minimal damage.