integumentary disorders Flashcards
first line of defense against invasion by microorganisms and other foreign material
skin
aka bedsore, decubitus ulcer
Causes: prolonged pressure, bony prominence friction, shearing, maceration, dehydration, malnutrition, poor circulation
pressure injury
- typically on plantar surface
- callus common on wound edge
- tunneling common
- foot deformities contribute to excess pressure
- decreased “protective sensation” leads to lack of feeling irritants
diabetic wounds
caused by venous insufficiency
- “gaiter” area of leg
- edema
- superficial wound
- lots of drainage
- common with severe lymphedema
venous wounds
treatment of venous wounds:
- wound care
- compression
- treat underlying conditions
caused by poor blood perfusion:
- dry wound bed
- gangrene
- “punched out”
- do not compress
- high amputation risk
arterial wounds
2 autoimmune diseases include:
- scleroderma
- psoriasis
4 types of burns:
- thermal
- electrical
- chemical
- radiation
most common type of burn
- caused by external heat sources, such as fire, steam, tar, hot liquids or hot metals that raise temp of skin and cause tissue cell death or charring
thermal burns
burn that occurs when there is contact with electricity. Can burn skin and may also cause internal damage
electrical burns
burn occurs when living tissue is exposed to a corrosive substance such as strong acid or base. May cause extensive tissue damage
chemical burns
a scar that becomes swollen, puffy, and red. Stands out from remaining tissue due to dysfunction in the healing process. produced by excess collagen
hypertrophic scarring