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19 Cards in this Set
- Front
- Back
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What is a burn |
A wound caused by exogenous agent leading to coagulative necorsis of the tissue |
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What are the 3 zones surrounding the jackson theory |
Zone of coagulation Zone of stasis Zone of hyperimia |
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Explain the three stages |
Zone of coagulation - area nearest to the heat source that suffers most damadged leading to blot clots and thrombosis Zone of stasis- area surrounding the zone od coagulation characterised by decreased blood flow Zone of hyperimia - peripheral area around the burn that increase blood flow |
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What is the physiology of a burn |
1. Immediate histamine relase 2. Intense vasoconstriction 3. Vasodilation occurss 4. Increase in capillary permeability 5. Plasma escapes into the would 6. Damadged cells swell up 7. Platelet and leukocyte aggregation 8. Thrombotic ischaemia occurs 9. Futher damage occurs |
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How is a burn classified |
Mechanism Depth Extent Severity |
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8 mechanism burns |
Thermal Friction Cold Uv Radiation Inhaltional Electrical Chemical |
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5 levels of the depth legend assosiated with the degree of a burn |
Superficial epidermal 1st Superfical dermal 2nd Mid dermal 2nd Deep dermal 2nd Full thickness 3rd |
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3 tools to estimate the extent of a burn |
Wallace rule of nine ap Lund and browder charts children Rule of oalm ped |
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How would you classify a minor burn |
Tbsa less than 5% No suspected Inhaltional injury Not injured Gcs of 14 |
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How would you classify a sever burn |
Tbsa 5-15% Suspected inhaltion injury Intubated Gsc less that 13 |
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How would you classify a critica burn |
Tbsa greater that 15% Burns compromised aiway Burns with multiple trauma |
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5 criteria to send a patient to a burns unit |
Burns greater than 15% Fullthickness burns greater that 5% Burns to special areas Children Eldery Chemical burns Inhalation burn Chemical burns |
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Accurately describe the primary survey |
Airway maintance with c spine Breathing and ventilation Circulation with hemorage control Disabilty Exposure |
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How do you acess conscious levels? |
AVPU alert Response to voice Resoinding to pain Unresponsive to stimuli |
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Accurately desrcibe the secondary survey |
Fluid resuction Circumferential burns Other Pain management |
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What is the parklands formula |
4mls x tbsa x kg =ml/24hours 1/2 first 8 1/2 in the 16 |
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What are circumferential burns |
Deep full thickness burns of an extremity around the chest or abdomen |
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What is an esharotmy |
Full thickness incsion down the subcutaneous fat in order to release unyielding eshar Allows repreucton of limbs and distal chest expansion |
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What are the indications for a eshar |
Cool limbs Pain or numbness No distal blood flow Reduced peripheral pulse oximatry
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