Integument Flashcards
What are the lesions?
Anything on slide 3
Secondary lesions can only occur from primary ones
True/False
True
Pressure Ulcers (Slide 6)
Ulcers occur from prolonged unrelieved pressure, especially in bony areas. Especially happens in people who are on prolonged bedrest where there is pressure on blood vessels quite the blood flow making the area necrosed. May experience discomfort
Friction vs Shearing forces
Two things rubbing against each
Shearing: one surface is moving the other isn’t; the patient being moved up and down in bed causing wear on the skin
Moisture
harbors bacteria, can lead to skin breakdown
Stages of pressure ulcers
Stage 1: erythema the skin is red, press on it and it stays red means this(no break in the skin)
Stage 2: top layer of skin is gone; a fluid filled blister that ruptures, superficial; area where the skin is gone
Stage 3: fatty tissue present in the wound
Stage 4: muscle is seen, bone is seen, ligament(silvery, light)
Suspected deep tissue injury
the area that is discolored if it is pressed, the tissue feels mushy, skin will eventually break open; characterized by a discolored (purple or maroon)intact skin or blood-filled blister
‘Unstageable’ Stage of pressure ulcer
full-thickness tissue loss with base of ulcer covered by slough or eschar, or both
Slough:
Eschar: black coating that is really hard and leathery and cant be removed (usually seen on the heel)
-these can be present on top of any of the stages of the pressure ulcer
Preventative techniques of pressure ulcers
- Conducting Frequent skin assessments
- Repositioning: Min of 2 hours a patient should be repositioned
- Pressure Reduction, removal, and distribution
- Elimination of Moisture: especially for patients that are incontinent
Risk factors for pressure ulcers
Don’t memorize but just look at pg 1055
Ischemia
Malnutrition
Causes of pressure ulcers
- impaired perfusion, lack of adequate blood flow
- adequate amt of proteins, vitamins, and other things vital for the body is key for skin integrity
Pg 1059, Table 41-4
Comedone:
Burrow: caused by a parasite
Petechiae: ruptured capillaries(b.v), causing red dots to form
Purpura: really large bruise, purple in color, >.5cm in diameter
Telangiectasia: dilated superficial blood vessels
Pruritis
Itching, this is just a symptom of of something
*chronic itching can result in infections and scarring due to persistent scratching
What’s the most common cause of itching(pruritus)?
*Histamine; released by mast cells *
What is the most common symptom of primary skin disorders?
Pruritus