chapter 38 skin integrity and wound care
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Chapter 38 Skin Integrity and Wound Care . Six Functions of the Skin. Protection Body temperature regulation Sensation Excretion Maintenance of water and electrolyte balance Vitamin D production and absorption. Question . Tell whether the following statement is true or false. - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 38Skin Integrity and Wound Care
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Six Functions of the Skin• Protection• Body temperature regulation• Sensation• Excretion • Maintenance of water and electrolyte balance• Vitamin D production and absorption
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Question
Tell whether the following statement is true or false.Blood vessels in the skin dilate to dissipate heat.A. TrueB. False
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Answer
Answer: A. TrueBlood vessels in the skin dilate to dissipate heat.
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Cross-Section of Normal Skin
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Factors Affecting the Skin• Unbroken and healthy skin and mucous membranes
defend against harmful agents• Resistance to injury is affected by age, amount of
underlying tissues, and illness• Adequately nourished and hydrated body cells are
resistant to injury• Adequate circulation is necessary to maintain cell life
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Developmental Considerations• Infant’s skin and mucous membranes are easily injured
and subject to infection• Child’s skin becomes increasingly resistant to injury and
infection– Requires special care because of toilet and play
habits• Adolescent has enlarged sebaceous glands and increased
secretions• Adult’s tissue becomes thinner and wrinkles appear; liver
spots occur
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Causes of Skin Alterations• Very thin and very obese people are more susceptible to
skin injury– Fluid loss during illness causes dehydration– Skin appears loose and flabby
• Excessive perspiration during illness predisposes skin to breakdown
• Jaundice causes yellowish, itchy skin• Diseases of the skin cause lesions that require care
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Factors Influencing Personal Hygiene• Culture• Socioeconomic class• Spiritual practices• Developmental and knowledge level• Health state• Personal preference
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Types of Wounds• Intentional or unintentional• Open or closed• Acute or chronic• Partial thickness, full thickness, complex
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Question
Which one of the following types of wounds is caused by a blunt instrument that causes injury to underlying soft tissue with the overlying skin remaining intact?A. ContusionB. AbrasionC. LacerationD. Avulsion
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Answer Answer: A. ContusionRationale:A contusion is caused by a blunt instrument and may result in bruising or hematoma.An abrasion is the rubbing or scraping of epidermal layers of skin.A laceration is the tearing of skin and tissue with a blunt or irregular instrument.Avulsion is the tearing of a structure from normal anatomic position.
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Principles of Wound Healing• Intact skin is the first line of defense against
microorganisms• Surgical asepsis is used in caring for a wound• The body responds systematically to trauma of any of its
parts• An adequate blood supply is essential for normal body
response to injury• Normal healing is promoted when wound is free of foreign
material
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Principles of Wound Healing (cont.)• The extent of damage and the person’s state of health
affects wound healing• Response to wound is more effective if proper nutrition is
maintained
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Phases of Wound Healing• Inflammatory• Proliferative• Remodeling
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Question
In which one of the following phases of wound healing is new tissue built to fill the wound space, primarily through the action of fibroblasts?A. HemostasisB. Inflammatory phaseC. Proliferation phaseD. Maturation phase
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Answer
Answer: C. Proliferation phaseRationale: In the proliferation phase, granulation tissue is formed to fill the wound.In hemostasis, involved blood vessels constrict and blood clotting begins.In the inflammatory phase, white blood cells move to the wound.In the maturation phase, collagen is remodeled forming a scar.
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Inflammatory Phase• Begins at time of injury• Prepares wound for healing
– Hemostasis (blood clotting) occurs– Vascular and cellular phase of inflammation
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Proliferative Phase• Phase begins within 2 to 3 days of injury and may last up
to 2 to 3 weeks• New tissue is built to fill wound space through action of
fibroblasts• Capillaries grow across wound• Thin layer of epithelial cells forms across wound• Granulation tissue forms foundation for scar tissue
development
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Remodeling Phase• Final stage of healing begins about 3 weeks after injury to
possibly 6 months• Collagen is remodeled• New collagen tissue is deposited• Scar becomes a flat, thin, white line
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Factors Affecting Wound Healing• Age—children and healthy adults heal more rapidly• Circulation and oxygenation—adequate blood flow is
essential• Nutritional status—healing requires adequate nutrition• Wound condition–specific condition of wound affects
healing• Health status—corticosteroid drugs and postoperative
radiation therapy delay healing
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Wound Complications• Infection• Hemorrhage• Dehiscence and evisceration• Fistula formation
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Question
Which one of the following wound complications is caused by overhydration related to urinary and fecal incontinence?A. NecrosisB. EdemaC. DesiccationD. Maceration
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Answer
Answer: D. MacerationRationale:Maceration is caused by overhydration related to incontinence that causes impaired skin integrity.Necrosis is dead tissue present in the wound that delays healing.Edema is swelling at a wound site that interferes with blood supply to the area.Desiccation is the process in which the cells dehydrate and die.
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Wound Dehiscence and Evisceration
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Psychological Effects of Wounds• Pain• Anxiety • Fear• Change in body image
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Factors Affecting Pressure Ulcer Development• Aging skin• Chronic illnesses• Immobility• Malnutrition• Fecal and urinary incontinence• Altered level of consciousness• Spinal cord and brain injuries• Neuromuscular disorders
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Mechanisms in Pressure Ulcer Development• External pressure compressing blood vessels• Friction or shearing forces tearing or injuring blood
vessels
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Stages of Pressure Ulcers• Stage I — nonblanchable erythema of intact skin• Stage II — partial-thickness skin loss • Stage III — full-thickness skin loss; not involving
underlying fascia• Stage IV — full-thickness skin loss with extensive
destruction
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Measurement of a Pressure Ulcer• Size of wound• Depth of wound• Presence of undermining, tunneling, or sinus tract
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A Wound with Various Types of Wound Surface Tissue
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Question
Tell whether the following statement is true or false.A Stage III pressure ulcer requires debridement through wet-to-dry dressings, surgical intervention, or proteolytic enzymes. A. TrueB. False
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Answer
Answer: A. TrueA Stage III pressure ulcer requires debridement through wet-to-dry dressings, surgical intervention, or proteolytic enzymes.
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Cleaning a Pressure Ulcer• Clean with each dressing change• Use careful, gentle motions to minimize trauma• Use 09% normal saline solution to irrigate and clean the
ulcer• Report any drainage or necrotic tissue
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Dressing the Pressure Ulcer• Keep ulcer tissue moist and surrounding skin dry• Place moist dressings only on the wound surface • Use dressing that absorbs exudate but maintains moist
environment• Use skin sealant or moisture-barrier ointment on
surrounding skin• Secure dressing with the least amount of tape possible• Use wet-to-dry dressings for debridement, when ordered• Pack wound cavities loosely with dressing material
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Wound Assessment• Inspection for sight and smell• Palpation for appearance, drainage, and pain• Sutures, drains or tube, manifestation of complications
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Presence of Infection• Wound is swollen• Wound is deep red in color• Wound feels hot on palpation• Drainage is increased and possibly purulent• Foul odor may be noted• Wound edges may be separated with dehiscence present
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Assessment of Wound Drainage• Serous• Sanguineous• Purulent
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Purposes of Wound Dressings• Provide physical, psychological, and aesthetic comfort• Remove necrotic tissue• Prevent, eliminate, or control infection• Absorb drainage• Maintain a moist wound environment• Protect wound from further injury• Protect skin surrounding wound
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Types of Wound Dressings• Telfa• Gauze dressings• Transparent dressings
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Types of Bandages• Roller bandages• Circular turn• Spiral turn• Figure-of-eight turn• Recurrent-stump bandage
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Types of Binders• Straight — used for chest and abdomen• T-binder — used for rectum, perineum, and groin area• Sling — used to support an arm
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Type of Drainage Systems• Open systems
– Penrose drain• Closed systems
– Jackson-Pratt drain– Hemovac drain
• Wound pouching
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Penrose Drain
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Jackson-Pratt Drain
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Color Classification of Open Wounds• R = red—proliferative stage of healing; reflects color of
normal granulation• Y = yellow—characterized by oozing; needs to be
cleansed• B = black—covered with thick eschar; requires
debridement• Mixed wound—contains components of RY&B wounds
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Topics for Home Care Teaching• Supplies• Infection prevention• Wound healing• Appearance of the skin/recent changes• Activity/mobility• Nutrition• Pain• Elimination
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Factors Affecting the Response to Hot and Cold Treatments• Method and duration of application• Degree of heat and cold applied• Patient’s age and physical condition• Amount of body surface covered by the application
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Effects of Applying Heat• Dilates peripheral blood vessels• Increases tissue metabolism• Reduces blood viscosity and increases capillary
permeability• Reduces muscle tension• Helps relieve pain
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Effects of Applying Cold• Constructs peripheral blood vessels• Reduces muscle spasms• Promotes comfort
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Devices to Apply Heat• Hot water bags or bottles• Electric heating pads• Aquathermia pads• Heat lamps• Heat cradles• Hot packs• Moist heat• Sitz baths• Warm soaks
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Devices to Apply Cold• Ice bags• Cold packs• Hypothermia blankets• Moist cold