burns Flashcards
What do burns prognosis depend on
depth and size region of body increased or young age preexisting degenerative disease type of burn early amt of fluid loss and response early wound care
What are the types of burns
Flames
scalding
chemical
electrical
Characteristics of a 1st degree burn
only outer layer of epidermis red, pink, dry painful heals in 3-10 days palliative tx (sunburn)
characteristics of a 2nd degree burn
epidermis and various degrees of dermis scalding injuries, deep sunburn moist, red, blistered painful-sensitive to touch or pinprick (pain sensors in tact) heals in 7-21 days requires medical care scar forms varying tx
What do blisters do
prevent loss of body water and protect underneath the skin
What is the criteria to be admitted to a burn unit
more than 20% of the body being burned
When do you often see 3rd degree burns
when clothes cath on fire or person is directly exposed to flame
Characteristics of a 3rd degree burn
epidermis, dermis and extends into subcutaneous tissue varies in color, hard, dry, leathery extensive edema no pain (nerve endings are damaged) surrounded by 1st/2nd degree burns decreased blood supply
When are grafts likely
in 3rd degree burns if greater than 1/5 inches
characteristics of a 4h degree burn
extends beyond skin and into fat, muscle, bone
black, charred, dry, crisp
painless
amputation typical
What are more severe burn injuries
those to the hands, feet, face, genital, inhalation, electrical
what is the rule of 9’s
describes the extent and percentage of the burn
what is the total % for the head
9
what is the total % for two arms
18%
what is the total % for the trunk
36
what % is the perinium
1
what % are the two legs
36
complications from burns
hemodynamic instability respiratory dysfunction hypermetabolic response organ system dysfunction sepsis