Skin Integrity Flashcards

1
Q

concepts that impact tissue integrity

A
  • sensory perception
  • mobility
  • nutrition
  • perfusion
  • gas exchange
  • elimination
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2
Q

concepts that are negatively impacted when tissue integrity is disrupted

A
  • infection
  • pain
  • fluid & electrolytes
  • thermoregulation
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3
Q

a & p of integument

A
  • hair – present everywhere but palms/ soles, root formed in dermis, thermal insulation, filter debris, color by melanin
  • nails – keratin, protects finger/toes - preserves sensory fns, growth slows w/ aging
  • skinepidermis (epithelial cells w/ keratin = waterproof, no blood vessels, depend on underlying structures), dermis (nerves, hair follicles, glands/ blood vessels), subcutaneous tissue (anchors skin layers to underlying tissues, fat storage-energy, heat, insulator, cushioning)
  • glands – sebaceous - produce sebum assoc w/ hair follicles, lubricate/soften skin, sweat - water and salt/cerumen, output depends on location, thermoregualtion
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4
Q

function of skin

A
  • protection – thickened areas palms/soles s/t inc trauma
  • sensation – receptors located in skin - temp, pain, light touch, pressure
    -** fluid balance** - can absorb water or excrete as sweat, about 600ml lost/day through sweat = insensible perspiration
    -** temp regulation** - evaporation of sweat, controlled blood flow thru skin
  • vitamin production – vitamin D made w/ melanin
    -** immune response** – Langerhans cells facilitate uptake of allergens
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5
Q

changes in skin integrity

A
  • state of individual health = direct impact on skin condition
  • very thin/ obese
  • fluid loss
  • ecessive moisture
  • jaundice
  • skin disorders
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6
Q

risk factors for impaired skin integrity

A
  • lifestyle variables
  • age
  • change in health status
  • illness
  • diagnostic procedures
  • therapeutic measures – immobility
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7
Q

categories of impaired tissue integrity

all

A
  • trauma
  • loss of perfusion/ gas exchange – = pressure ulcers
  • immunological disorders
  • thermal radiation
  • infection – bacterial, fungal, viral, infestations
  • lesions
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8
Q

categories of impaired tissue integrity

Trauma

A
  • incision (intentional)
  • contusion
  • abrasion (scrape)
  • lacertatin (cut)
  • puncture
  • penetrating
  • avulsion
  • chemical
  • thermal
  • irradiation
  • superficial, internal
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9
Q

categories of impaired tissue integrity

loss of perfusion/ gas exhange

A
  • pressure ulcers/ bed sores
  • venous statis ulcers
  • diabetic ulcers
  • arterial ulcers
  • poor venous return, peripheral artery disease
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10
Q

categories of impaired tissue integrity

immunological disorders

A
  • psoriasis
  • Steven- Johnson Syndrome
  • contact dermatitis
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11
Q

Steven-Johnson Syndrom

A
  • potentially fatal acute skin disorder - high infection risk (sepsis, multi-organ failure - 5% mortality rate)
  • characterized by: widespread erythema, macule formation, blistering, epidermal detachment/ sloughing
  • typically triggered by reaction to medication – antibiotics (common offender), anit-seizure, NSAIDs, tylenol
  • treatment – discontinue offending med, fluid/electrolyte replacement, supportive care – fluids, pain intervention
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12
Q

contact dermatitis

A
  • allergic – latex, poison ivy, cosmetics, jewelry
  • irritant – soap, diaper rash, pper spray, bleach
  • s/s – pruritus, burning, edema, swelling, papule/ vesicle formation
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13
Q

categories of impaired tissue integrity

thermal/ radiation

A
  • sunburn, radiation therapy
  • not chemical burns – irritant dermititis
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14
Q

categories of impaired tissue integrity

infection

A
  • bacterial – cellulitis, impetigo (staff/strep), acne
  • fungal – candida albicans, tinea (ringworm)
  • viral – herpes (shingles)
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15
Q

categories of impaired skin integrity

infestations

A
  • pediculosos humanis capitis (head lice)
  • pediculosis pubis (crabs)
  • scabies
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16
Q

categories of impaired skin integrity

cancer

A
  • skin lesion rule: ABCDE
  • Asymmetry
  • Border irregularity
  • Color change and variation
  • DIameter (6mm or greater)
  • Evolving in appearance
17
Q

Principles of wound healing

A
  • hand hygiene and infection prevention
  • body responds systemically to trauma in any of its parts
  • adequate blood supply is essential
  • normal healig is promoted when wound is free of foreign material
  • body’s ability to handle altered skin integrity depends on person’s general state of health
  • proper nutrition – glucose (high = bacteria food, 70-150), protein (albumin levels), vitamins/ minerals – iron, A/C/E - wound healing, collagen formation
18
Q

types of wounds

A
  • primary intention (little tissue loss) – surgical incision
  • secondary intention (big tisse loss) – burn, pressure ulcer, sever laceration
19
Q

phases of wound healing

A
  • hemostasis (“blueprint”)
  • inflammatory (“clearing the plot”)
  • proliferation (“build the house”)
  • maturation (“make things pretty”)
20
Q

1st phase of wound healing

A

hemostasis (“blueprint”)
- occurs immediately after initial injury
- blood vessels constrict
- platelet aggregation – clots- prevent futher blood loss
- exudate forms

21
Q

2nd phase of wound healing

A

inflammatory phase (“clearing the plot”)
- starts a couple hours after initial injury
- usually lasts 4-6 days
- WBCs move to wound:
- leukocytes – ingest baceria/ debris
- macrophages – ingest debris, release growth factors
- 5 signs of inflammation
- systemic response

22
Q

3rd stage of wound healing

A

proliferation phase (“build the house”)
- lasts for several weeks
- new tissue built into wound space
- fibroblasts – connective tissue cells that synthesize and secrete collagen (foundation/walls) and growth factors
- capillaries grow across wound bringing o2 and nutrients
- thin layer of epithelial cells across wound
- granulation tissue - new tissue, pink/red, composed of fibroblasts and small blood vessels that fill open wound when it starts to heal
- collagen synthesis continues, peaks in 5-7 days

23
Q

4th phase of wound healing

A

maturation phase (“make things pretty”)
- begins 3 weeks after injury - continue for months-years
- collagen deposits are remodeled = healed wound stronger and more like adjeacent tissue
- collagen continues to be deposited - compresses blood vessels = scar formation - avascular collagen tissue
- scar tissue weaker than noaml tissue, never fully restored

24
Q

wound repair

A

partial thickness
- shallow wounds
- loss of epidermis and partial dermis
- epidermis regernates – wound healing

full thickness
- beyond erpidermis, into deep layer of dermis
- dermis does not regenerate
- scar formation – wound healing

25
Q

factores affecting wound healing

local

A

local factors
- pressure
- desiccation –overly dried out
- maceration - overly hydrated (pruny)
- trauma
- edmea
- infection
- bleeding
- necrosis
- biofilm – thick grouping of bacteria, can dec affectiveness of antibiotics, esp topical

systemic factors
- age
- circulation
- oxygenation
- nutrition
- medications – corticosteoids reduce immune response/ dec inflammation good/bad, slows wound healing
- immunosuppressants

26
Q

complications of wound healing

A

hemorrhage:
- normal during and immediately after initial trauma
- risk greater 24-48 hrs after surgery or injury
- pressure, hemtatoma

infection
- symptoms become apparent w/in 2-7 days
- purulent drainage from wound
- may delay wound healing – keeps in infamm phase longer

fistula formation
- abnormal passage from internal organ to outside body (or other internal organ)

dehiscence
- partial or total separation of wound layers

evisceration
- protrusion of visceral organs through wound opening – medical emergency

27
Q

Braden Scale

A

scale based on common causes of dermal ulcers:
- sensory perception
- moisture
- activity
- mobility
- nutrition
- friction and shear

points for each subscale
- out of 23, 18 or less = high risk for ulcer formation
- skin assessment recommded at least daily - inpatient and outpatient

28
Q

consequences of impaired tissue integrity can lead to…

A

interruption of tissue integrity could lead to:
- change in regulation of body temperature
- fluid and electrolyte regulation problems
- alteration in protection of underlying organs and/or structures
- change in sensation (nerve damage)
- pain
- infection
- body image alterations

29
Q

stages of ressure ulcers

A
  • stage 1: nonblanchable erythema over bony prominencecs
  • stage 2: parital thickness skin loss: shallow open ulcer
  • stage 3: full thickness skin loss; damage/ necrosis of subcutaneous tissue
  • stage 4: full thickness skin loss; exstensive destruction, tissue necrosis, damage to muscle, bone, or supporting structures
30
Q

nursing priorities: primary prevention

A
  • assess patient and evaluation risk for pressure ulcer development
  • minimize or eliminate shear and friction
  • repositions clients frequently
  • use pressure relieving devices (pillow, blankets, hell protectors)
  • limit skin exposure to moisture
  • maintain adequate nutrition and hydration