Paed Haemorrhage Flashcards
Ways to control Haemorrhage
Dressing and bandages
CAT torniquet
QuikClot
External Bleeding to Limb Indications
External Bleeding to Limb
External Bleeding to Limb Contras
Nil
External Bleeding to Limb Precautions
Nil
External Bleeding to Limb Aims of Dressing
Elevate to control bleeding
Immobolise at rest in POC to trunk, sling or uninjured limb
Check to see if bleeding controlled
CAT Indications
Uncontrolled haemorrhage from limb despite direct pressure
Multiple casualty scene where pt numbers dictate that simple haemorrhage control cannot occur and be individually applied
CAT contras
Bleeding that can be controlled by basic first aid measures
CAT precautions
- Do not apply the tourniquet over a wound or a joint
- Once applied the tourniquet must be visible – it cannot be covered by any clothing or other bandages
- This piece of equipment will be deployed in critical situations and requires regular practice to maintain
familiarity and skill at quickly applying it whilst under stress - The primary reason for failure of the CAT is excess slack in the strap when first applied*. Other reasons for
sub-optimal results are too few turns of the windlass and failure to correctly work the strap-buckle
mechanism.
Where to place CAT
Approx 5-7cm proximal to site of bleeding - directly against skin and ensure band not twisted
QuikClot Indications
Uncontrolled haemorrhage from a non-compressible wound site
Unable to control haemorrhage by other measures including direct pressure or Combat
Application Tourniquets
QuikClot Contras
Ocular trauma
QuikClot Precautions
Unable to make contact with point of bleeding
How long do we hold pressure with QuikClot
3 mins
What to record on QuikClot
How many used and what type
Hemorrhagic Shock Patho
Hemorrhagic shock is due to the depletion of intravascular volume through blood loss to the point of being unable to match the tissues demand for oxygen.
The body compensates for volume loss by increasing heart rate and contractility, followed by baroreceptor activation resulting in sympathetic nervous system activation and peripheral vasoconstriction. Typically, there is a slight increase in the diastolic blood pressure with narrowing of the pulse pressure. As diastolic ventricular filling continues to decline and cardiac output decreases, systolic blood pressure drops.
Due to sympathetic nervous system activation, blood is diverted away from noncritical organs and tissues to preserve blood supply to vital organs such as the heart and brain. While prolonging heart and brain function, this also leads to other tissues being further deprived of oxygen causing more lactic acid production and worsening acidosis. This worsening acidosis along with hypoxemia, if left uncorrected, eventually causes the loss of peripheral vasoconstriction, worsening hemodynamic compromise, and death.