causes of burns
thermal, non thermal, chemical, radiation
thermal burns
dry heat, moist heat, frostbite
non thermal burns
electric
chemical burns
acids / alkali
radiation burns
sunlight / radiation therapy
layers of skin
epidermis
dermis
subcutaneous tissue
muscle
1st degree burn
epidermis
2nd degree burn
epidermis, dermis
3rd degree burn
epidermis, dermis, subcu
4th degree burn
epidermis, dermis, subcu, muscle
partial thickness burn
1st degree - superficial partial thickness
2nd degree - deep partial thickness
full thickness burn
3rd and 4th degree
is a quick way to estimate the extent of burns. The system assigns percentages in multiples of nine to major body surfaces
rule of nines
is the more precise method of estimating the extent of a burn which recognizes that the percentage of surface area of various anatomic parts, especially the head and legs, changes with growth (Pediatric)
lund and browder
used to estimate the extent in patients with scattered burns. The size of the patient’s palm is approximately 1%of the TBSA
palm method
percentages for adults in rule of nines
head and neck 9%
each arm 9%
FB upper trunk 18%
FB lower trunk 18%
(WHOLE TRUNK 36%)
each leg 18%
genitalia 1%
parkland formula is used in what degree of burns
2nd and 3rd degree burns
what is the parkland formula
4ml x BSA x Body wt
true or false - 4ml is not always constant in the parkland formula
true
parkland what ml to use if: pt has volume overload or compromised?
2 ml
parkland what ml to use if: pt has electric burns
6 ml
first half of the solution is given when?
first 8 hours
second half of the solution is given when/
next 16 hours
patient’s hand approximates ___% of total body surface area
0.01