Module 3 Flashcards
Parkland formula
4ml x KG x % of TBSA = fluid over 24h
First half over first 8 hours
titrate for urine output 30-50 cc/hr
Vent settings that impact ventilation
RR
TV
Vent settings that impact oxygenation
FiO2
Peep
TV setting
6-8ml/KG IBW
Assessments of burns
- Depth of burns
- Determine extent of burn
- Weight of pt
- Determine concomitant injuries
- Comorbities
Depths of burns
Superficial
Partial thickness
Full thickness
Superficial thickness
simple erythema without blistering (rapid healing)
Partial thickness
Skin loss
blistering
pain from exposed nerves
Full thickness
Skin loss penetrating deep layers of dermis
leathery, waxy, in elastic
Basic first aid of burns
Remove jewelry Remove clothes and debris Active cooling x20-30mins for small burns Don't cool in extensive burns >10% TBSA Cool burns warm core Dress burns Control pain
Why are burns worse in children
Children have thinner skin and larger body surface area
Greater fluid loss
Why are burns worse in old people
Old peeps thin dermis, reduced microcirculation and poor capacity for tissue regeneration results in deeper more complex burns and prolonged healing time
Flames cause
mixed depth burns
contact burns always cause
deep burns
cold/frostbite
severe drop in temp
causes formation of ice crystals and consequent intra cellular freezing leading to severe cellular damage and cell death
formation of micro clots cut off circulation
Chemical burns
cause progressive damage to the skin
remove irritant and irrigate
Acid chemical exposure
coagulative necrosis with swift formation limiting further tissue penetration
Alkalotic chemical exposure
results in liquefactive necrosis which allows deeper penetration of the chemical
Palmar estimation for burns
used for small or patchy burns
palm with fingers is 1%
Rule of Nines
moderate to severe burns in adults
not useful in kids unless its modified
each area of the body represents 9% TBSA front of legs- 9% Back of legs- 9% whole arm front and back - 9% entire head 9% abd 9% chest 9% upper back 9, lower back 9 groin 1%
Lund and Browder chart
accurate for use in adults and kids
vascular changes in thermal injury
Capillary leakage and massive fluid shifts
leads to decreased tissue perfusion
at what percentage of TBSA do people become hypotensive
> 15-20%