Application of a military tourniquet

Used for

  • Life threatening extremity bleeding that
    • Can't be immediately controlled with application of pressure
    • OR when providers have equally urgent competing priorities for persons care (eg loss of airway, severe limb haemorrhage)
  • A crushed lower limb about to be released

Irreversible ischaemia time depends on comorbidities, duration of shock and extent of tissue trauma

Attention

  • Do not place too close to the wound — severed artery may have retracted. Position at least 5cm from wound
  • Do not place over a joint
  • Do not cover with bandage, clothing or blankets

What you need

  • One or two military tourniquets

What you do

  • Release windlass from it holder
  • Roll out the velcro strap
  • Pass velcro strap around limb at least 5cm proximal to the wound (between the wound and the heart)
  • Feed strap fully through buckle and tighten
  • Wind the windlass firmly then secure in its holder
  • When the bleeding stops mesh velcro surfaces together and around the windlass in its holder

Figure 3.13  

  • Record time of tourniquet application
  • Continue with primary survey — ABCDE
  • Once you saved the life, try and save the limb — medical consult
    • If help at hand AND vascular access secured and stabilised — when bleeding stopped, pack wound tightly and straighten fractures so that a trial of tourniquet release can be made
  • Provide appropriate analgesia
  • Arrange evacuation
  • Medical consult about
    • Plan to release tourniquet if transport times go beyond 2 hours
    • Antibiotics
  • Regularly and frequently recheck for haemorrhage as well as the tourniquet’s tightness and position
  • Keep injured part in view — not concealed under blankets as further haemorrhage may go unnoticed
  • If tourniquet placed for release of a crushed lower extremity, keep securely in place until right conditions for advanced resuscitation — CPR, intubation, IV fluids and monitoring