Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


Chapter 16 Part 1 Skin Disorders

Nevi (moles) – Rounded, well-defined borders – Less than 5 mm; May be flat or raised; – May be singular or in groups
Seborrheic Keratoses – Benign overgrowth and thickening of cornified epithelium – Age-related-Adults > 50: on face and trunk - Cosmetic concern – Smooth or flaky-tan, yellow, darker brown
Psoriasis - Chronic auto-immune skin disorder - Raised, reddened, round circumscribed plaques covered by silvery white scales - Most common type is plaque psoriasis - AKA (psoriasis vulgaris) - Occurs most often in Caucasians; as child or middle 30’s.
Precipitating factors for Psoriasis – Certain drugs may act as trigger – Family history – Skin trauma from surgery – Sunburn – Excoriation – Sunlight – Stress – Seasonal changes – Hormone fluctuations – Steroid withdrawal
Hyperkeratosis – Abnormal keratin comes to outer layer of skin at greater rate - Produces abnormal cells with inflammatory response – Found over elbows, knees, scalp – Appear purple in darker-skinned patients
Manifestations of Hyperkeratosis - Characteristic lesions -silvery leathery plaques; May weep - Nails pitting, yellow/brown discoloration; separation from bed - Psoriatic arthritis
Psoriasis Diagnosis - Skin biopsy-If atypical - Ultrasound of skin
Psoriasis Treatments • Based on type, extent/location, pt age, degree of disfigurement • No cure • Topical medications • Oral immunosuppressants, if needed • Sunlight • Phototherapy • Photochemotherapy
Topical Psoriasis Medications Corticosteroids-anti-inflammatory-better with occlusive dressing
Topical Psoriasis Medications Tar preparations –decrease cell growth and inflammation: those from coal tar stain black with strong odor; Anthralin-made from coal tar without stain or have odor-used as shampoo
Topical Psoriasis Medications Vitamin D derivative
Phototherapy (Psoriasis Treatments) - Used sunlight in past, but can now use controlled UVB or UVA rays -gradually increasing dosage - UVB-decreases growth of epidermal cells - PUVA-w/lotion to make more sensitive/use of UVA rays - Eyes must be shielded; Must prevent severe sunburn
Photochemotherapy (Psoriasis Treatments) - Oral administration of chemo agent followed w/UVA exposure - High success rate with side effects of aging of exposed skin, risk of melanoma and altered immune function
Priorities of care for Psoriasis – Ensure adequate treatment of underlying process – Support physical and psychological responses – Provide emotional support – Teach patient and caregivers strategies for self-care
Pyoderma – Infection that occurs when a break in the skin allows invasion by pathogenic bacteria
Common infections of skin – Gram-positive Staphylococcus aureus (MRSA) – Beta-hemolytic streptococci
Folliculitis - Starts at hair follicles - Caused by S. aureus - Scalp and extremities; Pustules surrounded by area of erythema
Furuncles - Called boils-down hair shaft into dermis - Cysts may drain substantial amounts of purulent drainage
Carbuncle - Group of infected hair follicles - Common in hot, humid climates
Cellulitis - Reddened circle or streaks - Localized infection of dermis, subcutaneous tissue - Substance released (Spreading factor) breaks down barriers that usually localize infections
Methicillin-resistant Staphylococcus aureus (MRSA) infection - Skin, urine lungs and blood
Diagnosis of MRSA - Culture and sensitivity - Culture drainage from cleansed wound or blood culture - Test culture from external nares to identify carriers
Treatment of MRSA Antibiotic based upon sensitivity results, topical/oral or IV; Vancomycin IV-requiring trough drug levels for therapeutic doses prior to admin
Dermatophytes (Fungal Infection) - Tinea-like warm moist locations - Ringworm, athlete’s foot, jock itch-from direct contact
Candidiasis - Caused by fungus Candida albicans - AKA moniliasis - Found in moist skinfolds and mouth - Occurs from use of broad spectrum antibiotics that kill normal skin flora and allows candida to grow - Diabetes, immunodeficiencies, AIDS, chemotherapy
Vaginal infection (Yeast) - Odorless, thick cheesy discharge with itching and irritation
Diagnosis of Fungal Infection - Inspection and report - Cultures; Microscopic examination using KOH - Examination of skin with ultraviolet light (Wood's lamp)
Medications for Candidiasis Vaginal or skin treatment with topical cream (nystatin, miconazole) or oral fluconazole x 3 d – Oral candidiasis-Mycostatin swish and swallow
Herpes simplex 1 -(above the waist) - Skin and mucous membranes- forms vesicle (blister) – Lips, face and mouth – Initial infection often severe – Spread by contact, kissing, oral sex during outbreak - May have systemic sxs-fever, malaise
Herpes simplex 1 (HSV-1) - Virus lives in nerve ganglia: - Lesion heals in 10-14 days-if immune system healthy - Virus lies dormant and may have recurrent lesions - Triggers-sunlight, menstruation, injury, stress - Oral acyclovir used to treat current outbreak
Herpes simplex 2-Genital herpes - Caused by HSV-2 (below the waist)-first outbreak most severe - Spread by contact, sexual activity: (may have Herpes simplex 1 with oral sex) - Same treatment, progression and dormancy as type 1
Herpes zoster (Shingles) - Caused by reactivation of varicella zoster (herpes virus causing chickenpox) - Most common in adults over 60, patient's with leukemias, lymphomas, immunocompromised, HIV-may be first sign
Created by: pdimple