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19 Cards in this Set

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What is a burn

A wound caused by exogenous agent leading to coagulative necorsis of the tissue

What are the 3 zones surrounding the jackson theory

Zone of coagulation


Zone of stasis


Zone of hyperimia

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

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

How is a burn classified

Mechanism


Depth


Extent


Severity


8 mechanism burns

Thermal


Friction


Cold


Uv


Radiation


Inhaltional


Electrical


Chemical

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

3 tools to estimate the extent of a burn

Wallace rule of nine ap


Lund and browder charts children


Rule of oalm ped

How would you classify a minor burn

Tbsa less than 5%


No suspected Inhaltional injury


Not injured


Gcs of 14

How would you classify a sever burn

Tbsa 5-15%


Suspected inhaltion injury


Intubated


Gsc less that 13

How would you classify a critica burn

Tbsa greater that 15%


Burns compromised aiway


Burns with multiple trauma

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

Accurately describe the primary survey

Airway maintance with c spine


Breathing and ventilation


Circulation with hemorage control


Disabilty


Exposure

How do you acess conscious levels?

AVPU


alert


Response to voice


Resoinding to pain


Unresponsive to stimuli

Accurately desrcibe the secondary survey

Fluid resuction


Circumferential burns


Other


Pain management

What is the parklands formula

4mls x tbsa x kg =ml/24hours


1/2 first 8


1/2 in the 16

What are circumferential burns

Deep full thickness burns of an extremity around the chest or abdomen

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

What are the indications for a eshar

Cool limbs


Pain or numbness


No distal blood flow


Reduced peripheral pulse oximatry