What are signs of life-threatening bleeding?

The presence of bright red blood pooling, soaked clothes, and traumatic amputation are clear indicators of life-threatening bleeding. Bright red blood typically signifies that the wound is arterial, which often bleeds more profusely and can lead to rapid blood loss. When blood is pooling, it indicates that the bleeding is significant enough to soak through clothing and saturate the surrounding area. Traumatic amputation is particularly concerning, as this type of injury often results in major blood vessels being severed, leading to uncontrolled hemorrhaging. Recognizing these signs is crucial in a tactical environment, where prompt intervention is necessary to prevent shock and potential death from massive blood loss.

The other choices are associated with various medical conditions but do not specifically indicate life-threatening bleeding. For example, cool skin and a slow heartbeat might suggest shock but are not definitive signs of bleeding. Weak respiration and lethargy can point to other medical emergencies, while normal skin color and absence of pain do not reflect significant bleeding and may indicate stability rather than the need for immediate action.