Question 125Safety & Environmental - QMED

The correct answer is C) when all other means have failed. Tourniquets should only be used as a last resort to control severe, life-threatening bleeding when all other means, such as direct pressure and elevation, have failed. Tourniquets are an extreme measure that can cause significant tissue damage if left on too long, so they should only be applied in situations where the risk of blood loss outweighs the risk of potential complications. The other answer choices are incorrect because: A) Tourniquets are not specifically for puncture wounds, B) Tourniquets should not be used for minor wounds, and D) The victim's consciousness does not determine when a tourniquet should be used.