CHAPTER ELEVEN Integumentary System PHYSIOLOGY OF THE SKIN A. Structure. 1. Epidermis—outermost layer; contains the melanocytes and keratinocytes. 2. Dermis—connective tissue below epidermis; vascular; assists in body temperature and blood pressure regulation. B. Glands on the skin. 1. Sebaceous glands: produce sebum, which is an oily secretion that is emptied into the hair shaft. 2. Apocrine glands: secrete an odorless fluid from the hair shaft, which, on contact with bacteria, produces a distinctive body odor. a. Located in the axilla, anal region, scrotum, and labia majora. b. Become more active at the time of puberty. c. Eccrine glands: sweat glands that are stimulated by elevated temperature and emotional stress. (1) Located all over the body, especially on the forehead, palms of the hands, and soles of the feet. (2) Under control of the sympathetic nervous system. C. Functions of the skin. 1. Protection: primary function. 2. Sensory: major receptor for general sensation. 3. Water balance. a. 600 to 900 mL of water is lost daily through insensible perspiration. b. Forms a barrier that prevents loss of water and electrolytes from the internal environment. 4. Temperature regulation. 5. Involved in the activation of vitamin D. 6. Involved in wheal-and-flare reaction. a. Wheal: swelling. b. Flare: diffused redness. c. These responses are due to local edema caused by increased capillary permeability and dilation of the surrounding arterioles. d. Reaction is initiated by the release of histamine and the kinins. System Assessment A. Health history. 1. How long has the particular rash or lesion been present? 2. Is there any itching, burning, or discomfort associated with the problem? 3. Has the client been in contact with any irritants, sun, unusual cold, or unhygienic conditions? 4. Has anyone in the family ever had this same type of problem with his or her skin? 5. Is the client taking any medications? 6. What is the diet history? Does the client have any food allergies? B. Physical assessment (Box 11-1). 1. Inspection. a. Assess the skin for color. (1) Jaundice. (2) Vitiligo: loss of melanin, resulting in white, depigmented area. (3) Areas to assess include the sclera, conjunctiva, nail beds, lips, and buccal mucosa. b. Assess for vascularity. (1) Determine whether there are areas of bruising, purpura, or petechiae. (2) Determine whether skin blanches on direct pressure. c. Assess lesions for type, color, size, distribution, and grouping; location and consistency. (1) Use metric rulers to measure the size of the lesion. (2) Use appropriate specific terminology to describe and report type of lesion (Table 11-1). d. Assess for unusual odors, especially around lesions or in the intertriginous areas (axilla, overhanging abdominal folds, and groin). e. Assess for chronic UV exposure and photoaging of skin—appearance of actinic (sun) keratoses (precancerous lesions), wrinkling, and telangiectasia. 197 198 CHAPTER 11 Integumentary System (1) UVB—major factor of sunburn and nonmelanoma skin cancer. (2) UVA—contributes to cancerous effects of UVB. f. Inspect hair (head and body for distribution) and nails (grooves, ridges, smoothness-thickness, detachment from nailbed). 2. Palpation. a. Determine temperature (use back of hand), tissue turgor (pinch under clavicle or back of hand), and mobility. b. Evaluate moisture and texture. ALERT Perform a risk assessment—evaluation of skin integrity. Box 11-1 OLDER ADULT CARE FOCUS Differences in Skin Assessment Skin • Increased wrinkling and sagging, redundant flesh around eyes, slowness of skin to flatten when pinched together (tenting) • Dry, flaking skin: excoriation from scratching • Decreased rate of wound healing • Evidence of bruising Hair • Graying; dry, scaly scalp • Thinning, baldness Nails • Thick, brittle nails with diminished growth; ridging • Prolonged return of blood with blanching Table 11-1 BENIGN AND INFLAMMATORY DISORDERS OF THE SKIN Acne Vulgaris Acne is an inflammatory disorder of the sebaceous glands and their hair follicles. Assessment A. More common in teenagers; may persist into adulthood. B. Under hormonal influence during puberty; affected by presence of androgen, which stimulates the sebaceous glands to secrete sebum. C. Inflammatory lesions or pustules; noninflammatory lesions such as open comedones (blackheads) and closed comedones (whiteheads). D. Cysts: deep nodules that may produce scarring. Treatment A. Medical: topical or systemic therapy. 1. Antibacterial and peeling agents: benzoyl peroxide and retinoic acid. 2. Long-term antibiotic therapy. 3. Isotretinoin (Accutane)—derivative of vitamin A, causes serious side effects; teratogenic; contraindicated during pregnancy. Goal: To promote psychologic adjustment related to body image and appearance. A. Counsel and assure client that problem is not related to uncleanliness, dietary intake, masturbation, or sexual activity. B. Encourage client to talk about the problem with someone. C. Make sure client recognizes that picking and squeezing lesions will worsen condition. COMMON DERMATOLOGIC LESIONS Primary Lesions Secondary Lesions Macule: Flat, circumscribed area of color change in the skin without surface elevation; less than 1 cm in diameter (freckle, measles) Papule: Solid, elevated lesion, less than 1 cm in diameter (wart, elevated mole) Plaque: Circumscribed, solid lesion, greater than 1 cm in diameter (psoriasis, seborrheic keratosis) Nodule: Raised, solid lesion that is larger and deeper than a papule Vesicle: Small elevation in skin, usually filled with serous fluid or blood; bulla: larger than a vesicle; pustule: vesicle or bulla filled with pus (chicken pox, burn, herpes zoster-shingles) Wheal: Elevation of the skin caused by edema of the dermis (insect bite, urticaria) Cyst: Mass of fluid-filled tissue that extends to the subcutaneous tissue or dermis Fissure: Linear crack; may be dry or moist (athlete’s foot, crack in corner of mouth) Scale: Excess epidermal cells caused by shedding (flaking of the skin) Scar: Abnormal connective tissue that replaces normal skin (healed surgical incision) Ulcer: Loss of epidermis and dermis; crater-like; irregular shape (pressure ulcer, chancre) Atrophy: Depression in skin resulting from thinning of the layers (aged skin, striae) Excoriation: Area where epidermis is missing, exposing the dermis (scabies, abrasion, scratch) CHAPTER 11 Integumentary System Home Care A. Instruct client to cleanse face twice daily but to avoid overcleansing. B. May use a polyester sponge pad to cleanse, because it provides a mechanical removal of the epidermal layer. C. Instruct client to keep hands away from face and to avoid any friction or trauma to the area; avoid propping hands against face, rubbing face, etc. D. Emphasize the importance of a nutritious diet; encourage adequate food intake and use of vitamin A. E. Avoid the use of cosmetics, shaving creams, and lotion, because they may exacerbate acne; if cosmetics are to be used, water-based makeup is preferable. F. Instruct the client to administer medication appropriately: topical application; avoid sunlight while using medications, etc. Psoriasis Psoriasis is a chronic inflammatory disorder characterized by rapid turnover of epidermal cells. Assessment A. Silvery scaling, plaques on the elbows, scalp, knees, palms, soles, and fingernails. B. If scales are scraped away, a dark red base of the lesion is seen, which will produce multiple bleeding points. C. May improve but often recurs throughout life. D. Bilateral symmetry of symptoms is common. Treatment A. Medical. 1. Topical therapy. a. Coal tar preparation (Anthralin). b. Corticosteroids. 2. Photo chemotherapy (PUVA therapy): psoralen, ultraviolet A therapy (must wear protective eyewear during treatment and for 24 hours after therapy). 3. Systemic therapy: antimetabolites (methotrexate); immunosuppressants. Home Care A. Encourage verbalization of anxiety regarding appearance. B. Instruct client to use a soft brush to remove scales while bathing. C. Assess client to determine factors that may trigger skin condition (e.g., emotional stress, trauma, seasonal changes). D. Make sure client understands treatment and implications of care related to PUVA therapy and other treatments. Atopic Dermatitis Atopic dermatitis (also called eczema) is a superficial, chronic inflammatory disorder associated with allergy 199 with a hereditary tendency (atopy); condition commonly occurs during infancy, usually between 2 and 6 months of age and often persists in adulthood. Assessment A. Symptoms are similar with both adults and children; reddened lesions, occur on the cheeks, arms, and legs; antecubital and popliteal space in adults; may have oozing vesicles. B. Intense itching (worse at night). C. As the child gets older, the lesions tend to be dry with a thickening of the skin (lichenification). D. Infants with eczema are more likely to have allergies as children and adults and to develop asthma. Treatment A. Milk, eggs, wheat, and peanuts are the most commonly suspected causes in children; food allergies are not associated with adult atopic dermatitis. B. Pruritus is treated with Benadryl, topical steroids, and immunomodulators. C. Systemic steroids are prescribed if condition is severe. Home Care A. Teach parents about dietary restrictions; provide them with written guidelines. B. Keep fingernails and toenails cut short. C. Feed the child when he is well rested and is not itching. D. Assist parents to identify foods that contain eggs and other “hidden” allergenic foods. E. Avoid overheating; decrease likelihood of perspiration (no nylon clothing). F. Child should avoid contact with persons who have the chicken pox virus or herpes simplex. G. Avoid immunizations with live vaccines because of the possibility of severe reactions. H. Child should wear nonirritating clothing; wool and abrasive fabrics should be avoided. I. Tepid bath with mild soap or an emulsifying oil followed immediately by application of an emollient; cool compresses to decrease itching. J. Teach adults to avoid things that cause a flare-up of the condition and to treat symptoms with topical medication when they occur. NURSING PRIORITY Apply emollients (medications) immediately after bathing while skin is slightly moist to treat dry skin. Contact Dermatitis Contact dermatitis is an inflammatory skin reaction that results because the skin has come in contact with a specific irritant (irritant contact dermatitis, which occurs immediately after injury to skin; diaper dermatitis, which occurs after prolonged contact with urine, feces, ointments, soaps, or friction) or an allergen (allergic contact dermatitis, which is usually a symptom of delayed hypersensitivity). 200 CHAPTER 11 Integumentary System Assessment A. Causes. 1. Poison ivy and poison oak; fabrics such as wool, polyester. 2. Cosmetics; household products such as detergents, soap, hair dye. 3. Industrial substances: paints, dyes, insecticides, rubber compounds, etc. 4. Prolonged contact with diaper wetness, fecal enzymes, increased skin pH due to urine, and friction/ irritation. B. Clinical manifestations. 1. Pruritus; hive-like papules, vesicles, and plaques (more chronic). 2. Sharply circumscribed areas (with occasional vesicle formation) that crust and ooze. Treatment A. Medical. 1. Topical steroids; oral steroids for severe cases. 2. Antihistamines, antipruritic agents, and antifungals (diaper dermatitis). 3. Oatmeal baths and topical soaks. B. Skin testing to determine allergen; skin lesions usually appear within 12 to 48 hours after contact with allergen. Home Care A. Teach importance of washing exposed skin with cool water and soap as soon as possible after exposure (within 15 minutes is best). B. Provide cool, tepid bath; trim fingernails, and use measures to control itching. C. Teach about fallacy of blister fluid spreading the disease. D. Frequent diaper changes, keep skin dry, and use protective ointment (zinc oxide or petrolatum). PEDIATRIC PRIORITY Talc powders may keep skin dry, but they are harmful if breathed. Plain cornstarch is safer to use. Insect Bites Insect bites (wasp, bee, yellow jacket, hornet, fire ants, black widow spider, brown recluse spider, scorpion, tick) can range from non–life-threatening reactions to serious life-threatening reactions (due to anaphylaxis). Assessment A. Sharp pain, localized wheal, erythema, localized itching. B. Non–life-threatening systemic reactions (begin several minutes to hours after bite)—urticaria, angioedema. C. Life-threatening reactions—anaphylaxis. Treatment A. Medical. 1. Antihistamines, antipruritic agents, soothing baths. 2. Administration of antivenom—black widow, scorpion bite. B. Anaphylaxis—epinephrine, corticosteroids. Home Care A. Teach family that hypersensitive child should wear medical alert bracelet. B. Transfer to emergency medical care for scorpion bites in young children. Pressure Ulcer A pressure ulcer (decubitus ulcer, bedsore) is localized injury to the skin and/or underlying tissue usually over a bony prominence, as a result of pressure, or pressure in combination with shear and/or friction. ALERT Identify potential for skin breakdown: a pressure ulcer can be and should be prevented. Identify those clients at increased risk for ulcer development and begin preventative care as soon as possible. Do not wait for the reddened area to occur before preventative measures are initiated. Assessment A. Risk factors/etiology. 1. Prolonged pressure caused by immobility. 2. Malnutrition, hypoproteinemia, vitamin deficiency. 3. Infection. 4. Skin dryness, maceration, excessive skin moisture. 5. Advancing age. 6. Equipment such as casts, restraints, traction devices, etc. B. Risk assessment instruments. 1. Braden Scale. a. Scores six subscales: sensory perception, moisture, activity-mobility, nutrition, friction, and shear. b. Total score range is 6 to 23; a lower score indicates a higher risk for pressure ulcer development. c. Most reliable and most often used assessment scale for pressure ulcer risk; score of 18 is cut-off for adults. 2. Pressure Ulcer Scale for Healing (PUSH Tool). a. Developed by the National Pressure Ulcer Advisory Panel (NPUAP) as a quick, reliable tool to monitor the change in pressure ulcer status over time. b. Observe and measure the pressure ulcer. Categorize the ulcer with respect to surface area (0-10), exudate (0-3), and type of wound tissue (0-4). c. Monitor scoring over time: 0 = healed; 17 = not healed. C. Clinical manifestations—see Table 11-2. Treatment A. Medical and surgical. 1. Debridement (initial care is to remove moist, devitalized tissue). a. Sharp debridement: use of a scalpel or other instrument; used primarily, especially with cellulitis or sepsis. b. Mechanical debridement: wet-to-dry dressings, hydrotherapy, wound irrigation, and dextranomers CHAPTER 11 Integumentary System Table 11-2 201 STAGES OF PRESSURE ULCERS Definition Further Description Suspected Deep Tissue Injury Purple or maroon localized area of discolored intact skin or blood-filled blister caused by damage of underlying soft tissue from pressure and/or shear. The area may be preceded by tissue that is painful, firm, mushy, boggy, warmer, or cooler compared with adjacent tissue. Deep tissue injury may be difficult to detect in individuals with dark skin tones. Evolution may include a thin blister over a dark wound bed. The wound may further evolve and become covered by thin eschar. Evolution may be rapid, exposing additional layers of tissue even with optimal treatment. Stage I Intact skin with non-blanchable redness of a localized area usually over a bony prominence. Darkly pigmented skin may not have visible blanching; its color may differ from the surrounding area. Stage II Partial-thickness loss of dermis presenting as a shallow open ulcer with a red-pink wound bed, without slough. May also present as an intact or open/ruptured serum-filled blister. Diagram The area may be painful, firm, soft, warmer, or cooler compared with adjacent tissue. Stage I may be difficult to detect in individuals with dark skin tones. May indicate “at risk” persons (a heralding sign of risk). Presents as a shiny or dry shallow ulcer without slough or bruising.* This stage should not be used to describe skin tears, tape burns, perineal dermatitis, maceration or excoriation. *Bruising indicates suspected deep tissue injury. Continued (small beads poured over secreting wounds to absorb exudate). c. Enzymatic and autolytic debridement: use of enzymes or synthetic dressings that cover wound and self-digest devitalized tissue by the action of enzymes that are present in wound fluids. 2. Wound cleansing (use normal saline solution for most cases). a. Use minimal mechanical force when cleansing to avoid trauma to the wound bed. b. Avoid the use of antiseptics (e.g., Dakin’s solution, iodine, hydrogen peroxide). 202 CHAPTER 11 Integumentary System Table 11-2 STAGES OF PRESSURE ULCERS—cont’d Definition Stage III Full-thickness tissue loss. Subcutaneous fat may be visible, but bone, tendon, and/or muscle are not exposed. Slough may be present but does not obscure the depth of tissue loss. May include undermining and tunneling. Stage IV Full-thickness tissue loss with exposed bone, tendon, or muscle. Slough or eschar may be present on some parts of the wound bed. Often includes undermining and tunneling. Unstageable Full-thickness tissue loss in which the base of the ulcer is covered by slough (yellow, tan, gray, green, or brown) and/or eschar (tan, brown, or black) in the wound bed. Further Description Diagram The depth of a stage III pressure ulcer varies by anatomic location. The bridge of the nose, ear, occiput, and malleolus do not have subcutaneous tissue, and stage III ulcers can be shallow. In contrast, areas of significant adiposity can develop extremely deep stage III pressure ulcers. Bone/tendon is not visible or directly palpable. The depth of a stage IV pressure ulcer varies by anatomic location. The bridge of the nose, ear, occiput, and malleolus do not have subcutaneous tissue, and these ulcers can be shallow. Stage IV ulcers can extend into muscle and/or supporting structures (e.g., fascia, tendon, or joint capsule), making osteomyelitis possible. Exposed bone/tendon is visible or directly palpable. Until enough slough and/or eschar are removed to expose the base of the wound, the true depth and stage cannot be determined. Stable (dry, adherent, intact without erythema or fluctuance) eschar on the heels serves as “the body’s natural (biologic) cover” and should not be removed. Reprinted with permission from National Pressure Ulcer Advisory Panel: Updated staging system, 2007. Available at www.npuap.org. Accessed July 31, 2008, from http://www.npuap.org/resources.htm CHAPTER 11 Integumentary System 3. Dressings (should protect wound, be biocompatible, and hydrate). a. Moistened gauze. b. Film (transparent). c. Hydrocolloid (moisture and oxygen retaining). NURSING PRIORITY Keep the ulcer tissue moist and the surrounding intact skin dry. B. Dietary. 1. Increased carbohydrates and protein. 2. Increased vitamin C and zinc. Nursing Interventions Goal: To prevent or relieve pressure and stimulate circulation. A. Frequent change of position; turn client every 1 to 2 hours. B. Special beds with mattresses that provide for a continuous change in pressure across the mattress. C. Silicone gel pads placed under the buttocks of clients in wheelchairs. D. Sheepskin pads to provide a soft surface to protect the skin from abrasion. E. Eggcrate-style or other foam mattress to allow circulation under the body and keep the area dry. F. Active and passive exercises to promote circulation. Goal: To keep skin clean and healthy and prevent the occurrence of a pressure ulcer. A. Wash skin with mild soap and blot completely dry with soft towel. 1. Avoid hot water and excessive rubbing. 2. Use lotion or protective moisturizer after bathing. B. Inspect skin frequently, especially over bony prominences. NURSING PRIORITY Avoid massage over bony prominences. When the sidelying position is used in bed, avoid positioning client directly on the trochanter; use the 30° lateral inclined position. Do not use donut-type devices. Maintain the head of the bed at or below 30° or at the lowest degree of elevation. Teach chair-bound persons, who are able, to shift weight every 15 minutes. C. Remove any foreign material from the bed, because it may serve as a source of irritation; keep sheets tightly stretched on bed to prevent wrinkles. Goal: To promote healing of pressure ulcer. A. Use methods discussed to decrease the pressure on the area in which the pressure ulcer is found. 1. Air-fluidized beds—stage III or stage IV pressure ulcers. 2. Static support surfaces—not recommended for stage III or IV. B. Keep the ulcer area dry. 1. Minimize skin exposure to moisture caused by incontinence, perspiration, or wound drainage. 203 2. Use only underpads or briefs that are made of materials that absorb moisture and provide a quick-drying surface next to the skin. 3. Position the client with the ulcer exposed to air; may use light to increase drying and promote healing. C. Use skin barriers to decrease contamination and increase healing of a noninfected ulcer. D. Observe the ulcer for signs of infection. Infected ulcers will have to be debrided, if healing is to occur. SKIN INFECTIONS AND INFESTATIONS Impetigo Impetigo is a bacterial skin infection caused by invasion of the epidermis by pathogenic Staphylococcus aureus and/or group A beta-hemolytic streptococci. Assessment A. Pustule-like lesions with moist honey-colored crusts surrounded by redness. B. Pruritus; spreads to surrounding areas. C. Appears more commonly on the face, especially around the mouth. Treatment A. Medical. 1. Local: topical treatment. a. Gentle washing two to three times a day to remove crusts. b. Topical mupirocin (Bactroban) antibiotic cream, if only a couple of lesions are found. 2. Systemic antibiotic therapy is the treatment of choice with extensive lesions. Home Care A. Teach the client and family the importance of good handwashing and assure them that lesions heal without scarring. B. Encourage adherence to therapeutic regimen, especially taking the full course of antibiotics. C. Untreated impetigo may result in glomerulonephritis. Cellulitis Cellulitis is an inflammation of the subcutaneous tissues often following a break in the skin caused by Staphylococcus aureus, Streptococcus, or Haemophilus influenzae. Assessment A. Intense redness, edema with diffuse border, and tenderness. B. Chills, malaise, and fever. Treatment A. Medical. 1. Moist heat, immobilization, and elevation of part. 2. Systemic antibiotic therapy is the treatment of choice with extensive lesions. 204 CHAPTER 11 Integumentary System Home Care A. Teach the client and family the importance of good handwashing. B. Encourage adherence to therapeutic regimen, especially taking the full course of antibiotics. Fungal (Dermatophyte) Infections Assessment A. Types. 1. Tinea corporis (ringworm): temporary hair loss, if scalp is affected. 2. Tinea cruris (jock itch): small, red, scaly patches in the groin area. 3. Tinea pedis (athlete’s foot): scaling, maceration, erythema, blistering, and pruritus; usually found between the toes. 4. Tinea unguium (onychomycosis): thickened, crumbling nails (usually toes) with yellowish discoloration. 5. Candidiasis: caused by Candida albicans, known as moniliasis, may affect oral mucosa, groin, and moist areas; white plaques in mouth; diffuse red rash on skin. Treatment A. Topical antifungal cream (see Appendix 11-2). B. Oral antifungal medication. C. Systemic therapy: griseofulvin; used primarily for extensive cases. Home Care A. To prevent athlete’s foot, client should be instructed to keep feet as dry as possible and wear socks made of absorbent cotton. 1. Talcum powder or antifungal powder may be used; Tinactin may be applied twice daily. 2. Encourage aeration of shoes to allow them to completely dry out. B. Client should maintain hygienic measures to prevent the spread of fungal diseases, specifically ringworm of the scalp. 1. Family members should avoid using the same comb. 2. Scarves and hats should be washed thoroughly. 3. Examine family and household pets frequently for symptoms of the disease. C. Client should avoid infection. 1. Any activity that allows heat, friction, and maceration to occur may lead to skin breakdown and infection. 2. Loose-fitting clothing and cotton underwear are to be encouraged. Parasitic Infestations A. Pediculosis. 1. Types. a. Pediculus humanus capitis: head lice. b. Pediculus humanus corporis: body lice. c. Phthirus pubis: pubic lice or crabs. 2. Clinical manifestations. a. Intense pruritus, which may lead to secondary excoriation and infection. b. Tiny, red, noninflammatory lesions. c. Eggs (nits) of both head and body lice are often attached to the hair shafts. d. Pubic lice are often spread by sexual contact. B. Scabies: an infestation of the skin by Sarcoptes scabiei mites. 1. Intense itching, especially at night. 2. Burrows are seen, especially between fingers, on the surfaces of wrists, and in axillary folds. 3. Redness, swelling, and vesicular formation may be noted. Treatment A. Pediculosis. 1. Permethrin 1% liquid (Nix): effective against nits and lice with just one application; shampoo hair first, leave Nix on hair for 10 minutes, rinse off; may repeat in 7 days. 2. Pyrethrin compounds (e.g., Rid) for pubic and head lice. B. Scabies: permethrin 5% cream (Elimite); cream is applied to the skin from head to soles of feet and left on for 8 to 14 hours, then washed off; only one application needed. Home Care A. All family members and close contacts need to be treated for parasitic disorders; lice can survive up to 48 hours; nits can hatch in 7-10 days when shed in the environment. B. Bedding and clothing that may have lice or nits should be washed or dry-cleaned; furniture and rugs should be vacuumed or treated. C. Nurses should wear gloves when examining scalp to prevent spread to others. D. When shampooing hair, use a fine-tooth comb or tweezers to remove remaining nits. Viral Infections A. Herpes simplex virus (fever blister, cold sore): herpes virus type 1 (HSV-1). 1. Painful, local reaction consisting of vesicles with an erythematous base; most often appears around the mouth. 2. Contagious by direct contact; is recurrent; there is no immunity. 3. Chronic disorder that may be exacerbated by stress, trauma, menses, sunlight, fatigue, or systemic infection. 4. Recurrent episodes are characterized by appearance of lesions in the same place. 5. Not to be confused with HSV-2, which primarily occurs below the waist (genital herpes). 6. It is possible for the HSV-1 to cause genital lesions and for HSV-2 to cause oral lesions (see Sexually Transmitted Diseases in Chapter 22). CHAPTER 11 Integumentary System B. Herpes zoster (shingles). 1. Related to the chicken pox virus: varicella. 2. Contagious to anyone who has not had chicken pox or who may be immunosuppressed. 3. Linear patches of vesicles with an erythematous base are located along spinal and cranial nerve tracts. 4. Often unilateral and appears on the trunk; however, may also appear on the face. 5. Pain, burning, and neuralgia occur at the site before outbreak of vesicles. 6. Often precipitated by the same factors as herpes simplex infection. C. Herpetic whitlow: occurs on fingertips and around nail cuticles; often seen in medical personnel. Treatment A. Usually symptomatic; application of soothing moist compresses. B. Analgesics; gabapentin (Neurontin) for postherpetic neuralgia. C. Antiviral agents (see Appendix 11-2). D. Zoster vaccine is recommended for adults over 60 years regardless of whether they report a prior episode of herpes zoster. Home Care A. Alleviate pain by administering analgesics. B. Antihistamines may be administered to control the itching. C. Usually, lesions heal without complications; herpes simplex usually heals without scarring, whereas herpes zoster may cause scarring. D. If hospitalized, establish contact precautions for herpes zoster. MALIGNANT SKIN NEOPLASMS Nonmelanoma Skin Cancers Assessment A. Risk factors. 1. Overexposure to sunlight. 2. Fair skin type (blond or red hair and blue or green eyes). 3. Exposure to chemicals. 4. Scars from severe burns. B. Types. 1. Actinic keratosis: premalignant type. a. Small macules or papules with dry, rough, adherent yellow or brown scales. b. Appears on face, neck, back of hand, and forearm. c. May slowly progress to squamous cell carcinoma. 2. Basal cell carcinoma: most common type of skin cancer. a. Appears as a small, waxy nodule with a translucent pearly border. b. Appears more frequently on the face, usually between the hairline and upper lip. 205 3. Squamous cell carcinoma: malignant proliferation arising from the epidermis; usually on sun-damaged skin or skin that has been irradiated or excessively scarred. a. May metastasize. b. Appears as a firm nodule with an indistinct border; may be opaque. Malignant Melanoma Assessment A. Risk factors. 1. Chronic UV exposure without protection or overexposure to artificial light (tanning bed). 2. Fair skin, genetic (first-degree relative). 3. Has the highest mortality rate of any form of skin cancer (Box 11-2). a. Often appears in preexisting moles in the skin. b. Common sites include back and legs (women); trunk, head, and neck (men). c. Sudden or progressive change or increase in size, color, or shape of a mole. Treatment A. Surgical. 1. Excisional surgery; laser treatment. 2. Cryosurgery. 3. Electrodesiccation and curettage. B. Medical. 1. Radiation therapy. 2. Chemotherapy—topical 5FU (skin cancer, except melanoma). 3. Biologic therapy (alpha-interferon, interleukin-2)— malignant melanoma. Nursing Interventions Goal: To assist client to understand disease process, importance of follow-up treatment, and measures to maintain health. A. Teach the importance of avoiding unnecessary exposure to sunlight. B. Apply protective sunscreen when outside. C. Teach the warning signs of cancer. D. Treat moles found in areas where there is friction or repeated irritation. Goal: To support the client and promote psychologic homeostasis. Box 11-2 MALIGNANT MELANOMA Melanomas tend to have: A Asymmetry B Border irregularity C Color variegation D Diameter great than 6 mm E Evolving or changing in some way 206 CHAPTER 11 Integumentary System A. Allow for verbalization of fear and anxiety. B. Encourage verbalization relating to altered body image when large, wide, full-thickness excisions must be made to treat malignant melanoma. C. Point out client’s resources and support effective coping mechanisms. D. Teach the importance of examining and checking moles and any new lesions. ELECTIVE COSMETIC PROCEDURES A. Purpose: to improve self-image. B. Types of elective cosmetic surgery. 1. Chemical face-lift or peel: superficial destruction of the upper layers of skin with a cauterant solution. 2. Tretinoin (Retin-A) and alpha-hydroxy acids: topical application provides reversal of photodamaged skin and normal aging by influencing epithelial cell growth and differentiation. 3. Microdermabrasion: removal of epidermis to treat acne, scars, wrinkles, etc. 4. Botulinum toxin injection: neurotoxin that causes temporary interference with neuromuscular transmission, paralyzing the affected muscle. 5. Face-lift (rhytidectomy): lifting and repositioning of facial and neck tissues. 6. Eyelid-lift (blepharoplasty): removal of redundant (excess) eyelid tissue. 7. Liposuction: technique for removing subcutaneous fat from face and body. Nursing Interventions Goal: To provide preoperative care. A. Reinforce information from informed consent obtained by physician. B. Instruct client to avoid taking vitamin E and aspirin at least 1 week before surgery to prevent bleeding. C. Explain that wound healing and final results may not be complete until 1 year after procedure. Goal: To provide postoperative care. A. Administer analgesics for pain management. B. Observe for bleeding. C. Teach client signs and symptoms of infection. D. Teach client who had a chemical peel to avoid the sun for 6 months to prevent hyperpigmentation, because a reduction of melanin in the skin occurs as a result of the procedure. E. Teach client who has liposuction to wear spandex compression garments to reduce risk for bleeding and prevent fluid accumulation. BURNS A. Types of burns. 1. Thermal injury: most common type of burn injury; results from flames, flash (explosion), scald, or direct contact with hot object. 2. Electrical injury: intense heat is generated from electrical current and causes coagulation necrosis as current flows through the body. 3. Chemical injury: results from contact with a corrosive substance. 4. Smoke and inhalation injury: results from inhalation of air or noxious chemicals; the respiratory system frequently sustains two types of burn injuries: a. Smoke inhalation and topical burns on face, neck, and chest may precipitate airway edema and obstruction within 24 to 48 hours after burn injury. b. Inhalation of carbon monoxide combines with hemoglobin, thereby decreasing availability of oxygen to cells. B. Fluid considerations. 1. Fluid shift and edema formation occur within first 12 hours post burn and can continue 24 to 36 hours after burn injury. 2. Fluid mobilization and diuresis occur around 48 to 72 hours post burn when the capillary integrity is restored. 3. Serum potassium levels increase and hematocrit levels increase because of hemoconcentration. 4. The increased capillary permeability and the histamine released from the injured cells precipitate a decrease in fluid volume. Assessment A. Respiratory—determine circumstances surrounding injury: did fire occur in an enclosed space, is there a risk for an inhalation injury? 1. Assess for burns on the face and in the mouth. 2. Examine mouth and sputum for black particles and the nasal septum for edema. 3. Assess for change in respiratory pattern indicating impending respiratory obstruction. a. Increased hoarseness. b. Drooling or difficulty swallowing. c. Audible wheezing, crackles, presence of stridor. 4. Assess for development of carbon monoxide poisoning. a. Mild: headache, decreased vision. b. Moderate: tinnitus, drowsiness, vertigo, altered mental state, decreased B/P, “cherry red” color from vasodilatation. B. Evaluate cardiac output and peripheral circulation. 1. Tachycardia and hypotension may occur early. 2. Evaluate urine output to determine adequacy of tissue perfusion. 3. Evaluate peripheral circulation. C. Identify when client ate last; check gastrointestinal function. D. Determine hydration status. 1. Presence of hematuria. 2. Urine output (should be at least 30 mL/hr). 3. Hypotension (blood pressure below 90/60 mm Hg). CHAPTER 11 Integumentary System E. Presence of confusion and disorientation may occur secondary to hypoxia, low B/P, or carbon monoxide poisoning. 41/2% 41/2% 41/2% 41/2% NURSING PRIORITY The client with burn injury is often awake, mentally alert, and cooperative at first. The level of consciousness may change as respiratory status deteriorates or as the fluid shift occurs, precipitating hypovolemia. F. Determine the severity of the burn injury (Box 11-3 and Figure 11-1). 1. Extent of burn surface (burn surface area). a. Rule of nines: generally used for adults (Figure 11-2) and estimation in children (Figure 11-3). b. Pediatric burns are calculated by taking into account the client’s age in relation to proportion of body parts. 2. Area of burn. a. Circumferential burns (burns surrounding an entire extremity) may cause severe reduction of circulation to an extremity as a result of edema Degree of burn Superficial partial thickness Hair follicle Deep partial thickness Sweat gland Structure Epidermis Dermis Fat Full thickness Muscle Bone FIGURE 11-1 Levels of human skin involved in burns. (From Lewis SL, et al: Medical-surgical nursing: assessment and management of clinical problems, ed 7, St. Louis, 2007, Mosby.) Box 11-3 DEPTH OF BURNS • Superficial or first-degree burn: Area is reddened and blanches with pressure; no edema present; area is generally painful to touch. • Partial-thickness or second-degree burn: Dermis and epidermis are affected; formation of large, thick-walled blisters; underlying skin is erythematous. • Full-thickness or third- and fourth-degree burn: All of the skin is destroyed; may have damage to the subcutaneous tissue and muscle; usually has a dry appearance, may be white or charred; will require skin grafting to cover area; underlying structures (fascia, tendons, and bones) are severely damaged, usually blackened. 207 41/2% 9% 9% 9% 9% 1% 9% 9% 9% 9% FIGURE 11-2 Rule of nines. formation and lack of elasticity of the eschar, leading to compartmental syndrome. b. Location of the burn is related to the severity of the injury: (1) Face, neck, chest → respiratory obstruction (2) Hands, feet, joints, and eyes → self-care (3) Ears, nose → infection 3. Age. a. Infants have an immature immune system and poor body defense. b. Older adult clients heal more slowly and are more likely to have wound infection problems and pulmonary complications. 4. Presence of other health problems: diabetes and peripheral vascular disease delay wound healing. Treatment A. Respiratory status takes priority over the treatment of the burn injury. B. If the burn area is small (less than approximately a 10% BSA), apply cold compresses or immerse injured area in cool water to decrease heat; ice should not be directly applied to the burn area. C. Administer tetanus injection. D. Do not put any ointment or salves on the burn area. E. If the cause of the burn is chemical, thoroughly rinse the area with large amounts of cool water. F. Fluid resuscitation. 1. Used for clients with burns on 15% to 20% or more of body surface area. 2. Placement of large bore IV catheters on admission to ED. 3. Fluid replacement: calculation of fluid replacement begins from time of burn, not time of admission to ED. 208 CHAPTER 11 Integumentary System A B FIGURE 11-3 Estimation of distribution of burns in children. A, Children from birth to 5 years. B, Older children. (From Hockenberry MJ, Wilson D: Wong’s essentials of pediatric nursing, ed 8, St. Louis, 2009, Mosby.) a. One-half of first 24-hour fluid replacement is given during first 8 hours after burn injury. b. One-fourth of remaining amount is given during the second and third 8-hour periods. c. Urine output is most sensitive indicator of fluid status; fluid replacement may be titrated to keep urine output at 0.5 mL/kg or average of 30 mL/hour. G. Maintain NPO (nothing by mouth) status; assess need for nasogastric tube. H. Analgesics are given intravenously; do not give intramuscularly, subcutaneously, or orally because they will not be absorbed effectively. I. Methods of wound care (area is cleaned and debrided of necrotic burned tissue). 1. Open method (exposure): burn is covered with a topical antibiotic cream and no dressing is applied. 2. Closed method of dressing: fine mesh is used to cover the burned surface; may be impregnated with antibiotic ointment, or ointment may be applied before the dressing is applied. 3. Escharotomy: procedure involves excision through the eschar to increase circulation to an extremity with circumferential burns. 4. Enzymatic debriders: collagenase, fibrinolysin, and Accuzyme may be used. 5. Wound grafting: as eschar is debrided and granulation tissue begins to form, grafts are used to protect the wound and to promote healing. J. Nutritional support. 1. Diet is high in calories and protein. 2. In clients who have large burn surface areas, supplemental gastric tube feedings or hyperalimentation may be used. Nursing Interventions Goal: To maintain patent airway and prevent hypoxia. A. Anticipate respiratory difficulty if there are any indications of inhalation injury. 1. Remain with client; frequent assessment of respiratory status. 2. Supplemental oxygen. 3. Be prepared to intubate client: airway edema can occur rapidly. 4. Assess airway as fluid resuscitation begins; may precipitate more edema. B. Assess for carbon monoxide poisoning. C. Anticipate transfer to burn unit if burns cover more than 15% to 20% of body surface area, depending on depth of burn, age of client, and presence of other chronic illnesses. Goal: To evaluate fluid status and determine circulatory status and adequacy of fluid replacement. A. Obtain client’s weight on admission. B. Assess status and time frame of fluid resuscitation; calculation of fluid replacement begins at time of burn injury, not on arrival at hospital. C. Evaluate renal status and urine output: adequate output for children is 1 mL/kg/hr. Goal: To prevent or decrease infection. A. Implement infection control procedures to protect the client. B. After eschar sloughs or is removed, assess wound for infection; infection is difficult to identify before the eschar sloughs. CHAPTER 11 Integumentary System Goal: To maintain nutrition and promote positive nitrogen balance for healing. A. Work with dietitian to maintain nutritional intake. B. Provide tube feedings as indicated. C. Care of total parenteral nutrition as indicated (see Appendix 18-7). D. Daily weight. Goal: To prevent contractures and scarring. A. Assist client to attempt mobilization and ambulation as soon as possible. B. Passive and active range of motion should be initiated from the beginning of burn therapy and throughout therapy. C. Position client to prevent flexion contractures; position of comfort for the client may increase contracture formation. D. Use splints and exercises to prevent flexion contractures. E. Use pressure dressings and garments to contour healing burn area to keep scars flat and prevent elevation and enlargement above the original burn injury area. 209 Goal: To promote acceptance and adaptation to alterations in body image. A. Employ counselors and resource team members. B. Maintain open communication and encourage expression of feelings. C. Anticipate depression as a normal consequence of burn trauma; it should decrease as condition improves. NURSING PRIORITY It is important to recognize that the client’s anger is not a direct attack on the care provider; it is an expression of grief and sorrow. Home Care A. Physical therapy. B. Continue high-calorie, high-protein diet. C. Wound care management. D. Avoid exposure of burn area to direct sunlight. Appendix 11-1 SKIN DIAGNOSTIC STUDIES Skin Testing Purpose: confirm sensitivity to a specific allergen by placing antigen on or directly below skin (intradermal) to check for presence of antibodies. 1. Three methods—allergen applied to arms or back. Cutaneous scratch test (also known as a tine or prick test): allergen applied to a superficial scratch on skin. Intracutaneous injection: small amount of the allergen is injected intradermally in rows; more accurate; high risk for severe allergic reaction; used only for those who do not react to cutaneous method. Patch test: used to determine whether client is allergic to testing material (small amount applied on back)—returns in 48 hours for evaluation. 2. Interpreting results. Immediate reaction: appears within minutes after the injection; marked by erythema and a wheal; denotes a positive reaction. Positive reaction: indicates an antibody response to previous exposure; local wheal-and-flare response occurs. Negative reaction: inconclusive; may indicate that antibodies have not formed yet or that antigen was deposited too deeply in skin (not an intradermal injection); may also indicate immunosuppression. 3. Complications: range from minor itching to anaphylaxis (see Chapter 7). NURSING PRIORITY Never leave client alone during skin testing, because of the risk for anaphylaxis. If a severe reaction occurs, anticipate anti-inflammatory topical cream applied to skin site (scratch test) or a tourniquet applied to the arm (intracutaneous test) and possible epinephrine injection. Wood’s Lamp (black light) Purpose: examination of skin with long-wave ultraviolet light that causes specific substances or areas to fluoresce (e.g., Pseudomonas species, fungi, patches of vitiligo). Biopsy Types: punch, excisional, incisional, shave 1. Verify if informed consent is needed. 2. Apply dressing and give postprocedure instructions—watch for bleeding. Skin Culture Purpose: identify fungal, bacterial, and viral organisms. 1. Scrap or swab affected area; label specimen and send to lab. Microscopic Tests Potassium hydroxide (KOH)—identifies fungal infection Tzanck test—diagnoses of herpes infections Mineral oil slides—diagnoses of infestations Immunofluorescent—identifying abnormal antibody proteins (can also be a serum test) 210 CHAPTER 11 Integumentary System Appendix 11-2 MEDICATIONS USED IN SKIN DISORDERS MEDICATIONS SIDE EFFECTS NURSING IMPLICATIONS General Nursing Implications —Topical medications are used primarily for local effects when systemic absorption is undesirable. —For topical application: —Apply after shower or bath for best absorption, because skin is hydrated. —Apply small amount of medication and rub in well. Antifungal: Inhibits or damages fungal cell membrane, either altering permeability or disrupting cell mitosis. Clotrimazole (Lotrimin): topical Nystatin (Mycolog): topical Ketoconazole (Nizoral): PO, topical Griseofulvin (Fulvicin): PO Nausea, vomiting, abdominal pain. Hypersensitivity reaction: rash, urticaria, pruritus Hepatotoxicity Gynecomastia (ketoconazole) 1. Monitor hepatic function (when oral medication is given). 2. Avoid alcohol because of potential liver problems. 3. Check for local burning, irritation, or itching with topical application. 4. Prolonged therapy (weeks or months) is usually necessary, especially with griseofulvin (Fulvicin). 5. Take griseofulvin (Fulvicin) with foods high in fat (e.g., milk, ice cream) to decrease GI upset and assist in absorption. 6. Uses: tinea infections, fungal infections, candidiasis, diaper dermatitis. Antiviral: Reduces viral shedding, pain, and time to heal. Acyclovir (Zovirax): topical, PO, IV Penciclovir (Denavir): topical Vidarabine (Ara-A, Vir-A): IV, ophthalmic IV: phlebitis, rash, hives PO: nausea, vomiting Topical: burning, stinging, pruritus Anorexia, nausea, vomiting Ophthalmic: burning, itching 1. Apply topically to affected area six times per day. 2. Avoid autoinoculation; wash hands frequently; apply with gloved hand. 3. Avoid sexual intercourse while genital lesions are present. 4. Drink adequate fluids. 5. Infuse IV preparations over 1 hour; use an infusion pump for accurate delivery. 6. Uses: herpes infections. Antiinflammatory: Decreases the inflammatory response. Triamcinolone acetonide (Aristocort): topical Skin thinning, superficial dilated blood vessels (telangiectasis), acne-like eruptions, adrenal suppression 1. Triamcinolone and hydrocortisone creams come in various strengths and potency. Watch the percent strength. 2. Applied 2-3 times a day. 3. Use an occlusive dressing only if ordered. 4. Encourage client to use the least amount possible and for the shortest period of time. Immunosuppressant: Suppresses T cells and decreases release of inflammatory mediators; alternative to glucocorticoids. Pimecrolimus cream (Elidel): topical Tacrolimus ointment (Protopic): topical Erythema, pruritus Burning sensation at application site GI, Gastrointestinal; IV, intravenously; PO, by mouth (orally). 1. Teach clients to use sunscreen, because medication makes client sensitized to UV light. 2. Long-term effects can lead to skin cancer and lymphoma. CHAPTER 11 Integumentary System 211 Appendix 11-3 TOPICAL ANTIBIOTICS FOR BURN TREATMENT MEDICATIONS SIDE EFFECTS Topical Antibiotics: Prevent and treat infection at the burn site. NURSING IMPLICATIONS Silver sulfadiazine (Silvadene) Hypersensitivity: rash, itching, or burning sensation in unburned skin 1. Liberal amounts are spread topically with a sterile, gloved hand or on impregnated gauze rolls over the burned surface. 2. If discoloration occurs in the Silvadene cream, do not use. 3. A thin layer of cream is spread evenly over the entire burn surface area; reapplication is done every 12 hours. 4. Client should be bathed, “tubbed”, or showered daily to aid in debridement. 5. Medication does not penetrate eschar. 6. For clients with extensive burns, monitor urine output and renal function; a significant amount of sulfa may be absorbed. Mafenide acetate (Sulfamylon 10%) Pain, burning, or stinging at application sites; excessive loss of body water; excoriation of new tissue; may be systemically absorbed and cause metabolic acidosis 1. Bacteriostatic medication diffuses rapidly through burned skin and eschar and is effective against bacteria under the eschar. 2. Dressings are not required but are frequently used. A thin layer of cream is spread evenly over the entire burn surface. 3. Monitor renal function and possible acidosis, because medication is rapidly absorbed from the burn surface and eliminated via the kidneys. 4. Pain occurs on application. 5. Watch for hyperventilation, as a compensatory mechanism when acidosis occurs. 212 CHAPTER 11 Integumentary System Study Questions Integumentary System 1. A client has extensive burns with eschar on the anterior trunk. What is the nurse’s primary concern regarding eschar formation? 1 It prevents fluid remobilization in the first 48 hours after burn trauma. 2 Infection is difficult to assess before the eschar sloughs. 3 It restricts the ability of the client to move about. 4 Circulation to the extremities is diminished because of edema formation. 2. A client comes to the outpatient clinic with impetigo on his left arm. What information would the nurse give this client? 1 Apply antibiotic ointment to the dried lesion. 2 Wash the lesions with soap and water, then apply a steroid ointment. 3 Soak the scabs off the lesion and apply an antibiotic ointment. 4 Wash the lesions with hydrogen peroxide and apply an antifungal cream. 3. A teacher notifies the school nurse that many of the students in her third-grade class have been scratching their heads and complaining of intense itching of the scalp. The nurse notices tiny white material at the base of a student’s hair shaft. What condition does this assessment reflect? 1 Tinea capitis 2 Pediculosis capitis 3 Dandruff 4 Scabies 4. In which situation would it be appropriate for the nurse to administer a patch skin test? 1 A toddler with a possible diagnosis of cystic fibrosis 2 A client who has a transdermal patch ordered 3 A client scheduled for electromyography 4 A child who is to receive ampicillin for the first time 5. What is the type of skin cancer that is most difficult to treat? 1 Oat cell 2 Malignant melanoma 3 Basal cell epithelioma 4 Squamous cell epithelioma 6. An older adult client has an open wound over the coccyx that extends through the dermis and subcutaneous tissue, exposing the deep fascia. The wound edges are distinct, and the wound bed is a pink-red color. There is no bruising or sloughing. What stage of pressure ulcer is this wound? 1 Stage I 2 Stage II 3 Stage III 4 Stage IV More questions on companion CD! 7. The nurse understands that scaling around the toes, blistering, and pruritus is characteristic of what condition? 1 Eczema 2 Psoriasis 3 Tinea pedis 4 Pediculosis corporis 8. What are the physical characteristics of a client who is most susceptible to development of malignant melanoma? 1 Light to pale skin, blond hair, blue eyes 2 Olive complexion, oily skin, dark eyes 3 Dark skin with freckles, dry flaky skin, hazel eyes 4 Coarse skin, ruddy complexion, brown eyes 9. Herpes zoster has been diagnosed in an older adult client. What will the nursing management include? 1 Apply antifungal cream to the areas daily. 2 Maintain client on contact precautions. 3 Administer a herpes zoster immunization. 4 Expect to find lesions in the perineal area. 10. Which of the following nursing interventions will assist in reducing pressure points that may lead to pressure ulcers? Select all that apply: ______ 1 Position the client directly on the trochanter when sidelying. ______ 2 Avoid the use of donut-type devices. ______ 3 Massage bony prominences. ______ 4 Elevate the head of the bed as little as possible. ______ 5 When the client is sidelying, use the 30-degree lateral inclined position. ______ 6 Avoid uninterrupted sitting in any chair or wheelchair. 11. The nurse is teaching self-care to an older adult client. What would the nurse encourage the client do for his dry, itchy skin? 1 Apply a moisturizer on all dry areas daily. 2 Shower twice a day with a mild soap. 3 Use a pumice stone and exfoliating sponge on areas to remove dry scaly patches. 4 Wear protective pads on areas that show the most dryness. 12. What is the priority assessment finding for a client who has sustained burns on the face and neck? 1 Spreading, large, clear vesicles 2 Increased hoarseness 3 Difficulty with vision 4 Increased thirst Answers and rationales to these questions are in the section at the end of the book titled Chapter Study Questions: Answers and Rationales.
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