Skin System Flashcards
skin tolerates up to ? degrees
111F
Jacksons Theory of Thermal Burns 3 burn zones:
1st Zone of Coagulation 2nd Zone of Stasis 3rd Zone of Hyperemia
(Jacksons Theory) Zone of Coagulation:
Area of burn nearest to the heat source (most damage & tissue necrosis)Most damaged area
Zone of Hyperemia:
surrounding Area of erythema, damage with more RBC coming to area b/c/& cap/s more permeable (increased blood supply) trying to get phagocytes to inside for healing process
Sig burns have sig swelling from shift of fluid
Zone of Stasis / “Ischemia”:
Less damaged area adjacent to the Zone of Coagulation (treatable & posible reversible damage)
Thermal burn phases:
Emergent, Fluid-shift, Hypermetabolic, & Resolution phase
(Thermal burn phases) Emergent phase:
Vtach, cells anaerobic Body’s initial reaction to burn; pain response (afferent nerves damage> Nor/Epi release > tachycardia ; unless on beta blockers
(Thermal burn phases) Fluid-shift phase:
2nd phase; can last up to 24 hours; larger than 15 to 20%(BSA) of total body surface area
vasodilates & capillaries more permeable for phagocytosis
(Thermal burn phases) Hypermetabolic phase:
3rd phase Days or weeks depending on burn severity; increase in body’s demands for nutrients; begins process of repairing damaged tissue (needs Glucose, amino acids, carbohydrates, O2 to support damage)
(Thermal burn phases) Resolution phase:
4th phase Scar tissue laid down and remodeled; rehabilitate and return to normal function (weeks to months) new collagen & usually doesnt remodel to original state & makes escar (burn keloid) bc overgrowth
Chemical burns:
biochemical makeup of cell membranes; destroy cells
Denature:
take away natural state (from chem burns)
1 (Burn depth) 3rd degree:
2 feeling & appearance:
1= full thickness burn down to SCT may involve M. bone & organs
2= leather, looks Charred, dark brown or white, hard to touch “painless”
(Burn depth) Degrees:
= 1st/Superficial, 2nd/partial, 3rd/full/complete