Burns Flashcards
3 layers of skin
Epidermis, dermis and subcutaneous tissue
what part of the epidermis is metabolically active
inner
A barrier that prevents loss of fluid by evaporation and loss of body heat
Dermis
layer of skin w/ blood vessels, nerves, sweat glands, appendages (allow you to regrow skin)
dermis
layer of skin that is mostly fat but also has skin appendages, blood vessels, and nerves
Subcutaneous layer
what happens w/ a first degree burn
Involves only the epidermis
Epidermal barrier remains intact
No blistering
2 types of second degree burns
superficial
deep
upper 1/3 of dermis is invovled
superficial 2nd degree burn
lower 2/3 of dermis is involved
deep 2nd degree burn
if there fluid loss w/ a superficial 2nd degree burn?
not, most barrier intake
how long does it take for a superficial partial-thickness burn to heal
10-14 days
dry and thickened burn that is red or white
can have high fluid loss and can get infected
deep second degree burn
healing time w/ 2nd degree burn (deep)
heal in 4-8 weeks on their own
better outcome w/ skin grafting
May look unburned skin
Can be white and waxy to completely black
Can be dark red, but dry and non-blanching
Leathery texture
non-painful
3rd degree (full-thickness) burn
tx for 3rd degree burn
full thickness skin grafts
a 3rd degree burn where Dermal proteins coagulate and contract is called what
causes skin to be tight
eschar
what is an Escharotomy
making an incision for skin to expand so
a person can breathe or save a limb
what are respiratory injuries
inhalation aspiration from unconscious patients bacterial pneumonia pulmonary edema post-traumatic pulmonary insufficiency ARDS
are inhalation injuries more common outside or in an enclosed area?
enclosed area
what scenarios should you suspect an inhalation injury
History of closed space exposure Perioral burns Intraoral burns Carbonaceous material in the oropharynx Progressive hoarseness Singed facial and nose hairs
when should you suspect CO posioning
Suspect in same patients that you suspect of inhalation injury + HA and mental status change
can pulse ox and PaO2 be normal in CO poisoning
yes
symptoms w/ CO poisoning
Asymptomatic – HA – dizziness – syncope – coma - death