TOURNIQUET-JOINT-ERR-006 emergency config_error ai_generated true

AI instructs to apply tourniquet directly over a joint (elbow/knee) for severe bleeding, contrary to Stop the Bleed guidelines which require placement 2-3 inches above the wound, never over a joint

ID: emergency/tourniquet-over-joint

Also available as: JSON · Markdown · 中文
93%Fix Rate
91%Confidence
1Evidence
2024-11-02First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
Stop the Bleed 2023 guidelines active — — —
CAT Gen7 tourniquet active — — —
SOF Tactical Tourniquet active — — —

Root Cause

Tourniquets over joints are ineffective because the joint's bony prominence prevents sufficient compression of arteries; blood continues to flow around the joint. The correct placement is 2-3 inches above the wound on a single-bone segment (upper arm or thigh).

generic

中文

止血带绑在关节上无效，因为关节的骨性突起阻止了动脉的充分压迫；血液会继续绕过关节流动。正确位置是伤口上方2-3英寸的单骨段（上臂或大腿）。

Official Documentation

https://www.stopthebleed.org/training/

Workarounds

  1. 95% success Apply tourniquet 2-3 inches above the wound, never over a joint. For forearm wound, place on upper arm (between shoulder and elbow). For lower leg wound, place on thigh (between hip and knee). Tighten until bleeding stops. Example: use CAT Gen7, thread strap through buckle, twist windlass until bleeding ceases, secure windlass, note time. 
    Apply tourniquet 2-3 inches above the wound, never over a joint. For forearm wound, place on upper arm (between shoulder and elbow). For lower leg wound, place on thigh (between hip and knee). Tighten until bleeding stops. Example: use CAT Gen7, thread strap through buckle, twist windlass until bleeding ceases, secure windlass, note time.
  2. 85% success If wound is on a joint (e.g., elbow laceration), use hemostatic gauze (e.g., QuikClot) packed directly into wound with direct pressure, then wrap with pressure bandage. Tourniquet cannot be used effectively on joints. 
    If wound is on a joint (e.g., elbow laceration), use hemostatic gauze (e.g., QuikClot) packed directly into wound with direct pressure, then wrap with pressure bandage. Tourniquet cannot be used effectively on joints.

中文步骤

  1. Apply tourniquet 2-3 inches above the wound, never over a joint. For forearm wound, place on upper arm (between shoulder and elbow). For lower leg wound, place on thigh (between hip and knee). Tighten until bleeding stops. Example: use CAT Gen7, thread strap through buckle, twist windlass until bleeding ceases, secure windlass, note time.
  2. If wound is on a joint (e.g., elbow laceration), use hemostatic gauze (e.g., QuikClot) packed directly into wound with direct pressure, then wrap with pressure bandage. Tourniquet cannot be used effectively on joints.

Dead Ends

Common approaches that don't work:

  1. 98% fail

    The elbow's olecranon process prevents the tourniquet from compressing the brachial artery; blood flow continues via collateral circulation. Bleeding does not stop.

  2. 97% fail

    The patella and popliteal fossa create gaps that prevent arterial compression; the tourniquet slips or fails to occlude flow. Also risks nerve damage (common peroneal nerve).

  3. 99% fail

    Narrow materials cut into skin and cause severe tissue damage without achieving hemostasis; they are also more likely to slip off the joint contour.