29.11 Traumatic Burns Flashcards
The most challenging time in the resuscitation of a burn patient is typically the first
48 hours
A full thickness (or 3rd degree) burn has 3 zones of tissue injury
- Zone of coagulation – central zone
- Zone of stasis – adjacent to zone of necrosis, immediately after injury blood flow is stagnant
- Zone of hyperemia – outermost zone
What is the Zone of coagulation – central zone
Region of greatest destruction resulting in Necrosis and not capable of repair.
What is the Zone of stasis
1)Cells are injured but not irreversible.
2)Will become necrotic if deprived of blood flow.
3)Timely burn care and resuscitation will preserve blood flow and oxygen delivery.
What is Zone of hyperemia
1)Minimal cellular injury and characterized by increased blood flow secondary to inflammatory reaction initiated by the burn injury
BURNS EVOLE OVER TIME. Withhold final judgement until appx how long after injury.
48 hours
What kind of burn:
(a)Historically referred to as first degree.
(b)Involve ONLY EPIDERMIS.
(c)Red and painful.
(d)Rarely clinically significant except in the situation of large sunburns which canincrease the risk of dehydration
(e)Heal well within a week without scar.
(f)Not included when calculating the percentage of total body surface area of burns.
Superficial Burns
What kind of burn:
(a)Once referred to as second degree.
(b)Involve epidermis and varying portions of the DERMIS.
(c)Can be classified as superficial or deep.
(d)Will appear as BLISTERS or “denuded” burned areas with glistening or wetappearing base.
(e)Zone of necrosis involves entire epidermis and varying depths of superficial dermis, can progress to full thickness if not properly treated
Partial thickness burns
What kind of burn:
(a)May have several appearances.
(b)Most often appear thick, dry, white, and leathery regardless of skin color.
(c)Thick leathery damaged skin referred to as eschar.
(d)Common, misconception that these burns are pain free because nerve endingsare destroyed. These patients have varying degrees of pain, surrounding areashave superficial and partial thickness burns. These nerves are intact. These burns can be disabling and life threatening.
Full thickness
Point of injury care for burns
(1) Stop the burning process.
(2) Provide resuscitative care. Hemorrhage control. Airway maintenance.
(3) Remove all constricting articles.
(4) Cover the patient
(5) Protect against hypothermia
(6) Establish IV access.
(7) Begin resuscitation
(a)Use LR solution or similar.
(b)Continue during evac.
(c)Starting rate 500ml/hr for adults.
What is a lifesaving procedure for full thickness burns of the chest
Perform immediate escharotomy as a lifesaving procedure to permit adequate chest excursion
What is the primary index of adequate resuscitation for burn victims
UOP
Hourly fluid rate for burns
1)Initial hourly rate = %TBSA Burn x 10 ml/hr
2)Example 40% TBSA = 400 ml/hr
3)Rate of infusion or LR adjusted based on physiological response. UOP. Avoid abrupt changes in rate.
4)Adjust rate by 25% as needed.
5)Remember to adjust based on UOP.
What should be used for monitoring burn patients?
TWO IV’s, Foley, ECG monitoring, pulse Ox, a core temp, and NG tube are ideal for monitoring depending on capabilities
Target UOP for burn victims
0.5 ml/kg/hr