NURP 532 Dermatology (Week
6) Exam Study Guide
General Rash-Chemicals and hobbies - Answer Contact dermatitis
General Rash-Chronic illness - Answer Dermatitis herpetiformis
Seborrheic dermatitis
General Rash-Contact With Ill Persons - Answer Fifth disease
Meningococcemia
Roseola
Rubeola (measles)
Scarlet fever
Varicella
Viral exanthem (nonspecific)
General Rash-Drug exposure - Answer Lupus
Drug eruption
Urticaria
Atopic Dermatitis (Eczema) - Answer Eczema. Pruritic rash that waxes and wanes.
Tx=skin hydration w/ OTC moisturizer. No hot showers. Short, tepid baths. Moisturize
after shower
Mild-mod potency corticosteroids. Calcienurin inhibitors for age >2. Good for face, less
chance of skin atrophy. If superinfection, treat that as well w/ oral ABX like cefelasporin
or ampicillin.
Dyshidrotic eczema - Answer Itchy rash on lateral aspects of fingers and toes.
Nummular eczema - Answer Exposure to irritants/environment, esp in winter. Annular
plaque, pink w/ scaling
Looks similar to tinea corporis. KOH scraping under microscope would show hyphea if
tinea.
Contact dermatitis - Answer Pruritic rash from an irritant. Treat w/ corticosteroid
, Poison icy=linear vesicles on erythematous base, itchy. Mod potency steroid gel to help
dry out vesicles
Phytophotodermatitis=lime and sunshine rash. Oil in lime skin plus sunlight can cause
rash.
Diaper dermatitis - Answer Chapped, shiny, parchment-paper like skin. SPARES
INGUINAL FOLDS. If folds affected or satellite lesions, think candida. Tx=hydrocortisone
3x day for up to 5 days. Teach freq. Diaper changes and avoid scented wipes. Air area
out.
Seborrheic Dermatitis - Answer Cradle cap. Can also be on face/scalp in adolescents.
Appears also >50 YO and w/ parkinsons.
Erythematous plaques w/ yellow greasy scales. Adolescent
tx=ketoconazole topical cream/shampoo. Int low potency topical steroid.
Infants=mineral oit 5-10 min before bath. Brush and frequent shampoo
Scabies - Answer Red, itchy rash w/ brown/red lesions. Burrows (thin-threadlike).
Itching is worse at night
Tx=permethrin at bedtime entire body except head, repeat 1 week. Treat household.
Oral antihistamines PRN.
Oral ivermectin if non-responsive to topical. Weight-based dose. 1 dose repeated at 1
week. Not for children <15 kg, pregnant, or lactating.
Head lice - Answer Nits found retroarticular and occiput. Viable knit 1 in from scalp or
louse seen is how to diagnose
Crab lice - Answer Can be transmitted through fomites, sex, close contacts. Can infect
pubic hair, facial hair, eyelashes, and scalp. Usually likes thicker hair
Tx head lice w/ permethrin (>1 mo), Spinosad (> 6mo), ivermectin (>6 mo). Remove knits.
Repeat after 1 week.
Tx pubic lice w/ permethrin or pyrethrin insecticidal. Oral ivermectin. Shave hair or
de-louse hair.
Household members only need to be treated if they have lice as well.
Acneiform disorders - Answer microcomedome
Open comedome (blackheads)
Inflammatory acne papules/pustules-results from p.acnes
Cystic/nodular acne
Tx=benzoyl peroxide-good for mild acne, first line. Comedomal acne, inflammatory acne
6) Exam Study Guide
General Rash-Chemicals and hobbies - Answer Contact dermatitis
General Rash-Chronic illness - Answer Dermatitis herpetiformis
Seborrheic dermatitis
General Rash-Contact With Ill Persons - Answer Fifth disease
Meningococcemia
Roseola
Rubeola (measles)
Scarlet fever
Varicella
Viral exanthem (nonspecific)
General Rash-Drug exposure - Answer Lupus
Drug eruption
Urticaria
Atopic Dermatitis (Eczema) - Answer Eczema. Pruritic rash that waxes and wanes.
Tx=skin hydration w/ OTC moisturizer. No hot showers. Short, tepid baths. Moisturize
after shower
Mild-mod potency corticosteroids. Calcienurin inhibitors for age >2. Good for face, less
chance of skin atrophy. If superinfection, treat that as well w/ oral ABX like cefelasporin
or ampicillin.
Dyshidrotic eczema - Answer Itchy rash on lateral aspects of fingers and toes.
Nummular eczema - Answer Exposure to irritants/environment, esp in winter. Annular
plaque, pink w/ scaling
Looks similar to tinea corporis. KOH scraping under microscope would show hyphea if
tinea.
Contact dermatitis - Answer Pruritic rash from an irritant. Treat w/ corticosteroid
, Poison icy=linear vesicles on erythematous base, itchy. Mod potency steroid gel to help
dry out vesicles
Phytophotodermatitis=lime and sunshine rash. Oil in lime skin plus sunlight can cause
rash.
Diaper dermatitis - Answer Chapped, shiny, parchment-paper like skin. SPARES
INGUINAL FOLDS. If folds affected or satellite lesions, think candida. Tx=hydrocortisone
3x day for up to 5 days. Teach freq. Diaper changes and avoid scented wipes. Air area
out.
Seborrheic Dermatitis - Answer Cradle cap. Can also be on face/scalp in adolescents.
Appears also >50 YO and w/ parkinsons.
Erythematous plaques w/ yellow greasy scales. Adolescent
tx=ketoconazole topical cream/shampoo. Int low potency topical steroid.
Infants=mineral oit 5-10 min before bath. Brush and frequent shampoo
Scabies - Answer Red, itchy rash w/ brown/red lesions. Burrows (thin-threadlike).
Itching is worse at night
Tx=permethrin at bedtime entire body except head, repeat 1 week. Treat household.
Oral antihistamines PRN.
Oral ivermectin if non-responsive to topical. Weight-based dose. 1 dose repeated at 1
week. Not for children <15 kg, pregnant, or lactating.
Head lice - Answer Nits found retroarticular and occiput. Viable knit 1 in from scalp or
louse seen is how to diagnose
Crab lice - Answer Can be transmitted through fomites, sex, close contacts. Can infect
pubic hair, facial hair, eyelashes, and scalp. Usually likes thicker hair
Tx head lice w/ permethrin (>1 mo), Spinosad (> 6mo), ivermectin (>6 mo). Remove knits.
Repeat after 1 week.
Tx pubic lice w/ permethrin or pyrethrin insecticidal. Oral ivermectin. Shave hair or
de-louse hair.
Household members only need to be treated if they have lice as well.
Acneiform disorders - Answer microcomedome
Open comedome (blackheads)
Inflammatory acne papules/pustules-results from p.acnes
Cystic/nodular acne
Tx=benzoyl peroxide-good for mild acne, first line. Comedomal acne, inflammatory acne
