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lewis medsurg 11th, chapter 23 key point

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Chapter 23
Nursing Management: Integumentary Problems
KEY POINTS
ENVIRONMENTAL HAZARDS
• Sun safety includes sun avoidance (especially during midday hours), protective clothing, and
sunscreen use.
• Actinic keratoses, basal cell cancer, squamous cell cancer, and melanoma are problems
associated with sun exposure.
NONMELANOMA SKIN CANCERS
• Nonmelanoma skin cancers are the most common form of skin cancer. Nonmelanoma skin
cancers are neoplasms of the epidermis, most commonly occurring in sun-exposed areas.
• Teach patients to self-examine their skin monthly. The cornerstone of self-skin examination is
the ABCDE rule. Examine skin lesions for Asymmetry, Border irregularity, Color
change/variation, Diameter of 6 mm or more, and Evolving in appearance.
• Risk factors for skin cancer include fair skin type (blonde or red hair and blue or green eyes),
history of chronic sun exposure, and family history of skin cancer.
• Actinic keratosis is a premalignant form of squamous cell cancer (SCC) affecting most of the
older white population.
• A typical lesion is an irregularly shaped, flat, slightly erythematous papule with indistinct
borders and an overlying hard keratotic scale or horn.
• Treatments include cryosurgery, fluorouracil, surgical removal, tretinoin (Retin-A), chemical
peeling agents, laser resurfacing, photodynamic therapy, and dermabrasion.
• Basal cell carcinoma (BCC) is a locally invasive malignancy from epidermal basal cells.
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• Treatment includes surgical excision, electrodessication and curettage, cryosurgery, topical and
systemic chemotherapy, photodynamic therapy, and radiation therapy.
• Squamous cell carcinoma (SCC) is a cancer of keratinizing epidermal cells.
• SCC can be very aggressive, has the potential to metastasize, and may lead to death if not
treated early. With early detection and treatment, the cure rate is high.
• Pipe, cigar, and cigarette smoking contribute to SCC on the mouth and lips.
• Treatment includes surgical excision, electrodessication and curettage, excision, radiation
therapy, photodynamic therapy, and intralesional injection of fluorouracil or methotrexate.
MELANOMA
• Melanoma tumors arise in melanocytes. It is the deadliest skin cancer, and its incidence is
increasing faster than that of any other skin cancer.
• Important prognostic factor of melanoma is tumor thickness at the time of diagnosis. Stage 0 is
100% curable, with stage IV being mostly palliative care.
• The initial treatment for melanoma is surgery. A variety of therapies are available for
metastatic melanoma.
• Melanoma can metastasize to any organ. If it has spread to lymph nodes or nearby sites,
immunotherapy, biologic therapy, and/or radiation therapy is often needed. Chemotherapy is
limited to palliative pain control and the presence of brain metastases.
• People with dysplastic nevus syndrome are at an increased risk for melanoma.
SKIN INFECTIONS AND INFESTATIONS
• Staphylococcus aureus and group A β-hemolytic streptococci are major types of bacteria
responsible for primary and secondary skin infections.
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• Herpes simplex, herpes zoster, and warts are the most common viral infections affecting the
skin.
• There are many possibilities for exposure to infestations, harboring insects or worms, and
insect bites.
ALLERGIC DERMATOLOGIC PROBLEMS
• Allergies and hypersensitivity reactions may present as contact dermatitis and other lesions.
• A careful history involving exposure to possible offending agents and patch testing are useful
in determining the causative agent. The best treatment then becomes to avoid the cause.
• Stevens Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare, lifethreatening diseases that usually occur as a severe adverse drug reaction.
• Patients with SJS/TEN have a blistering rash with sheet-like epidermal detachment
accompanied by mucosal lesions in the eye, mouth, and genital areas.
• Identifying and stopping the offending drug(s) is the most important action in caring for a
patient with SJS/TEN. Immunotherapy may play a role in slowing disease progression
and promoting skin repair.
• Supportive care in an intensive care unit is essential. Interventions focus on airway
management, preserving renal function, maintaining fluid and electrolyte balance, and
pain control.
BENIGN DERMATOLOGIC PROBLEMS
• The most common benign dermatologic problems are acne, psoriasis, and seborrheic keratoses.
• Psoriasis is a chronic, autoimmune dermatitis characterized by silvery, scaling plaques on the
knees, elbows, scalp, hands, feet, and lower back.
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• Psoriasis for most people is more emotionally disabling. The person may be self-conscious and
withdraw from social contacts
INTERPROFESSIONAL CARE: DERMATOLOGIC MANIFESTATIONS
• After careful history, physical examination with visual inspection is necessary.
Interprofessional Therapy
• Ultraviolet light (UVL) of different wavelengths may be used to treat many dermatologic
conditions, including psoriasis, cutaneous T-cell lymphoma, atopic dermatitis, vitiligo, and
pruritus. Light sources available to treat skin problems include broadband UVB, narrowband
UVB, and long-wave UV (UVA1). Radiation use for treatment of cutaneous malignancies varies
greatly. Lasers are used for many dermatologic problems.
• Antibiotics are used topically and systemically to treat dermatologic problems. Common overthe-counter topical antibiotics include bacitracin, minocycline, and polymyxin B.
• Corticosteroids are particularly effective in treating a wide variety of dermatologic conditions.
They are used topically, intralesionally, or systemically. High-potency corticosteroids may
produce side effects when use is prolonged, including skin atrophy, rosacea eruptions, severe
exacerbations of acne vulgaris, and dermatophyte infections.
• Oral antihistamines are used to treat conditions that exhibit urticaria, angioedema, and pruritus.
Antihistamines may have anticholinergic and/or sedative effects. Several different antihistamines
may have to be tried to get an acceptable therapeutic effect.
• Topical immune response modifiers such as pimecrolimus (Elidel) and tacrolimus (Protopic)
are used in atopic dermatitis. Imiquimod (Aldara) stimulates the production of α-interferon and
other cytokines to enhance cell-mediated immunity. It is used for external genital warts, actinic
keratoses, and superficial basal cell cancer.
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Diagnostic and Surgical Therapy
• Diagnostic and surgical therapy techniques include skin scraping, electrodessication and
electrocoagulation, curettage, punch biopsy, cryosurgery, and excision.
• Tissue biopsy is the definitive test for diagnosing several skin lesions, particularly skin cancer.
NURSING MANAGEMENT: DERMATOLOGIC PROBLEMS
• Wet compresses are commonly used when skin is oozing from infection and/or inflammation,
to relieve itching, to suppress inflammation, and to debride superficial wounds.
• Baths are used to treat large body areas. They also have sedative and antipruritic effects.
• Careful hand washing and safe disposal of soiled dressings are the best means of preventing
spread of skin problems.
• You are able to provide patient teaching about managing pruritus, applying topical medications,
and proper skin care.
• Factors affecting the outcome of long-term dermatologic problems include skin type, history of
previous exacerbations, family history, complications, intolerance to therapy, environmental
factors, and lack of adherence to the prescribed regimen.
• It is important for you to assist with the emotional stress that can occur for persons who suffer
from certain chronic skin problems or have undergone some surgical procedures.
COSMETIC PROCEDURES
• Cosmetic procedures include chemical peels, toxin injections, collagen fillers, laser surgery,
breast enlargement and reduction, face-lift, eyelid lift, and liposuction.
• Preoperative management includes informed consent and realistic expectations of what
cosmetic surgery can accomplish.
SKIN GRAFTS
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• Skin grafts may be necessary to provide protection to underlying structures or to reconstruct
areas for cosmetic or functional purposes. Ideally, wounds heal by primary intention.
• Two traditional types of grafts are free grafts and skin flaps. Soft tissue expansion is a
technique for resurfacing a defect, such as a burn scar; removing a disfiguring mark, such as a
tattoo; or as a preliminary step in breast reconstruction. Engineered skin is helpful in certain
situations.
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