Transcript Burns PPT
Skin Burns Sources of Burns • Thermal • Chemicals • Electricity • UV Radiation Degree of Burns • 1st Degree - Superficial –Depth: Epidermis st 1 • Skin heat • Pain • Edema • Peeling • Recovery in 1-2 wk Degree st 1 Degree Example - Sunburn Degree of Burns • 2nd Degree - Partial Thickness – Epidermis and Dermis nd 2 Degree Burn • Blisters nd 2 Degree Burn • Recovery: 3-4 Weeks nd 2 Degree Burn • Possible scar • Danger: Secondary infection (bacteria) Degree of Burns • 3rd Degree – Full Thickness – Epidermis, Dermis, Hypodermis rd 3 Degree Burn • Disfiguring rd 3 Degree Burn • Danger: Secondary infection rd 3 Degree Burn • Artificial skin: Protective barrier (SHORT TERM) rd 3 Degree Burn • May be insensitive to touch • Most require skin grafts Hypodermis exposed Skin Grafts • (1) Obtaining skin Skin Grafts • (2) Growing cells in culture Skin Grafts • (3) Harvesting skin in culture Skin Grafts • (4) Surgical grafting Skin Grafts • Skin graft results rd 3 Degree Burn • Heavy scarring Stem Cell Research • Working to regenerate skin without the scarring Degree of Burns Frostbite Frostbite – Frostnip st 1 Degree • Epidermis • ~ sunburn • Redness & pain • Full recovery – no scarring nd 2 Frostbite – Degree Superficial Frostbite •Deeper dermis •Blisters •Full recovery •No scarring •Takes longer Frostbite – rd 3 Degree Deep Frostbite •Damage all layers •Full thickness •Destroys underlying tissues •Muscle, bone, blood vessels •Lengthy healing •Scarring •Loss of extremities Predisposing Factors •Hypothermia •Dehydration •Circulatory Disorders •Constricting Clothing