Tourniquet & Wound Packing — Quick Card

When to use a tourniquet vs direct pressure, step-by-step application, wound packing for junctional wounds, common errors, and post-application care.

tourniquetwound-packingbleedinghemorrhagefirst-aid

Tourniquet & Wound Packing — Quick Card

Uncontrolled bleeding is the leading cause of preventable death from trauma. A tourniquet or wound packing applied correctly in the first few minutes can save a life before emergency services arrive.

⚠️ Do not hesitate to apply a tourniquet to save a life. The risk of limb loss from a properly applied tourniquet is far lower than the risk of death from uncontrolled bleeding.

When to Use What

SituationCorrect Intervention
Bleeding from arm or leg — soaking through dressingsTourniquet
Bleeding from arm or leg — moderate, not yet life-threateningDirect pressure first; tourniquet if soaking through
Wound in groin, armpit, or neck (junctional)Wound packing + pressure — tourniquet cannot be placed here
Wound on torso/chest/abdomenDirect pressure only — no tourniquet, no packing
AmputationTourniquet immediately — do not attempt direct pressure first

Tourniquet Application — Step by Step

A commercial tourniquet (CAT, SOFTT-W) is ideal. An improvised tourniquet from a belt or strip of fabric works if nothing else is available.

StepAction
1. Expose the woundCut away clothing — you must see the injury
2. PositionApply 5–7 cm (2–3 inches) above the wound — never over a joint
3. Route the strapThread through the buckle and pull tight
4. Tighten with windlassTwist the rod until bleeding stops — this will be painful; continue until bleeding stops
5. Secure the windlassLock into the clip; do not allow it to unwind
6. Note the timeWrite the time of application on the tourniquet or the casualty's forehead with a marker
7. Do not coverLeave the tourniquet visible at all times
8. Do not removeOnly a physician removes a tourniquet — once applied, leave it on

The tourniquet is working when: Active bleeding has stopped. If bleeding continues, tighten further or apply a second tourniquet immediately above the first.

Wound Packing — Step by Step

Use for deep wounds in areas where a tourniquet cannot be placed: neck, groin, armpit, shoulder.

StepAction
1. Apply gloves if availableProtect yourself from bloodborne pathogens
2. Pack the woundPush haemostatic gauze (or any clean cloth) firmly into the wound cavity — do not just cover the surface
3. Pack tightlyUse your fingers to push gauze deep into the wound, filling the cavity completely
4. Apply direct pressureLean your full body weight onto the packed wound — maintain for a minimum of 3 minutes (5 minutes for haemostatic gauze)
5. Do not lift to checkLifting releases the pressure and disrupts clotting
6. If bleeding soaks throughAdd more gauze on top; do not remove original packing

Improvised Tourniquet

If no commercial tourniquet is available:

  1. Fold a strip of fabric (belt, torn shirt) to at least 4 cm wide — narrow material cuts into skin without stopping blood flow
  2. Wrap twice around the limb, 5–7 cm above the wound
  3. Tie a half-knot; place a stick, pen, or rigid object on top; tie another half-knot over it
  4. Twist the object until bleeding stops
  5. Secure the object so it cannot unwind (tie, tape, or tuck)
  6. Note the time

Common Errors

ErrorConsequenceCorrect Approach
Too looseCauses venous tourniquet — worsens bleedingTighten until bleeding stops entirely
Applied over a jointIneffective and potentially harmfulApply mid-limb, 5–7 cm above wound
Narrow materialCuts skin; distributes pressure poorlyMinimum 4 cm wide
Covering with bandagePrevents monitoringLeave visible at all times
Removing in the fieldRe-bleeding; reversal of clotLeave on — hospital removal only
Packing the surface onlyBlood continues beneathPack deep into the wound cavity

Post-Application Care

  • Monitor for continued bleeding above or below the tourniquet
  • Treat for shock: lay the casualty flat, elevate the uninjured leg, keep warm
  • Reassure and keep the casualty still
  • Ensure emergency services know tourniquet time when handing over

Quick Reference

ScenarioAction
Limb bleeding, soaking throughTourniquet — 5–7 cm above wound; tighten until bleeding stops; note time
Groin, armpit, or neck woundPack wound deep with gauze; apply firm continuous pressure 3–5 min
Tourniquet not stopping bleedApply second tourniquet directly above first
No commercial tourniquetBelt/torn strip ≥4 cm wide; windlass technique
Remove tourniquet?Never in the field — hospital only
How long can tourniquet stay on?Up to 2 hours safely; beyond that, risk of damage — but life > limb
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