Burns Flashcards
burn definition
A traumatic injury to the skin or other organic primarily caused by heat or exposure to electrical discharge, friction, chemicals or radiation.
common denominator of any burn
Denaturation of protein and cell death
what temp is there usually damage
above 140 F
conduction vs convection
Conduction
-Hot solid comes in contact with the skin
Convection
-Hot liquid/steam comes in contact with skin
-Steam offers a 30 fold increase in heat transfer co-
efficient and thus has the capacity to cause far more
skin damage
Zone of Coagulation:
Zone of Stasis:
Zone of Hyperemia:
Zone of Coagulation: circulation dead, tissue is killed/necrosed, the protein is denatured and lost (full thickness)
Zone of Stasis: circulation is reduced but tissue is not killed/necrosed (risk of necrosis)
Zone of Hyperemia: circulation intact but inflammation of tissue exist, tissue not killed
criteria for minor burns
-Isolated injury (i.e., no suspicion of inhalation or high-
voltage injury)
-Does not involve face, hands, perineum, or feet
-Does not cross major joints
-Is not circumferential
rule of nines adult: front and back
18%
rule of nines adult: arms
9%
rule of nines adult: legs
18%
rule of nines adult: head
9%
rule of nines child: front and back
18%
rule of nines child: arms
9%
rule of nines child: head
18%
rule of nines child: legs
14%
major burns criteria
Full thickness burns > 10% BSA Involving any of the following areas: Hands Face Perineum Eyes Ears Feet