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135 Cards in this Set
- Front
- Back
Name for lesion:
flat, circumscribe, <5mm |
Macule
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Macule: what size?
|
<5mm
FLAT |
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Derm name for:
Freckle |
Macule
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Name for lesion:
Flat, >1cm |
Patch
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Patch: what size?
|
>1cm
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Name for lesion:
Elevated, <5mm |
Papule
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Papule: size?
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<5mm
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Name for lesion:
Elevated, >1cm |
Plaque
(may represent confluence of papules) |
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Name for lesion:
Elevated, fluid-containing lesion, >1cm |
Bulla
(<1cm = vesicle) |
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Vesicle: what size?
|
<1cm
(fluid-containing) |
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Name for lesion:
Circumscribed collection of leukocytes |
Pustule (NOT vesicle)
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Difference b/w:
Papule vs. vesicle vs. pustule |
Papule: <5mm, raised, no fluid
Vesicle: <1cm, clear fluid Pustule: any size, pus |
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Name for lesion:
Elevated, INVOLVES DERMIS (may extend into subQ) |
Nodule
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Nodule: defining feature?
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Involves dermis
(majority of lesion is below skin) |
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Name for lesion:
Elevated; superficial transient edema |
Wheal
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Difference b/w:
Telangectasia vs. petechiae vs. purpura |
Telang: DILATED superficial venule/art/cap
Petech: CAP hemorhage (no blanch) Purp: bleed under skin |
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Do petechiae blanch? purpura?
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Neither blanch
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Name for lesion:
Fine or coarse keratin flakes; loose or adherent |
Scale
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Name for lesion:
Dried serum/blood/pus overlying lesion |
Crust
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Name for lesion:
Depressed lesion w/lost epidermis; NOT extend into dermis (no scar) |
Erosion
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Erosion: involves what layers?
|
Epidermis only
(NO dermis) |
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Name for lesion:
Depressed lesion extending into dermis/subQ --> leads to scar |
Ulcer
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Acute urticaria:
Underling mxn |
TYPE 1 hypersens
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Acute urticaria:
what % pop at some point in life |
15%
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Acute urticaria:
-itchy? -symm lesions? -do lesions coalesce? -lesions same age? -how long do lesions last? |
intense itch
ASYMM; DIFF AGES lesions can coalesce last 12-24 h |
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What dz:
5yo with pruritic rash on arms, legs, trunk; erythematous and EDEMATOUS; multiple plaques with clearings; lesions last 12-24h |
Acute urticaria
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Acute urticaria:
what causes itch? |
Mast cells --> histamine
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Acute urticaria: DEFINING FEATURE (to separate from exanthem)?
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ITCHY (releived w/antihistamine)
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Acute urticaria: which is greater allergen -- dog saliva or dander?
|
SALIVA
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Acute urticaria:
Assoc w/asthma-ecz? |
YES
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What dz:
Insect bites --> pruritic lesions 3-10mm, RECURRENT/CHRONIC (1-2w) |
Papular urticaria
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Papular urticaria:
Underlying trigger? |
INSECT BITES
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Papular urticaria:
Smaller or larger lesions than acute urticaria? |
SMALLER (3-10mm)
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Papular urticaria:
Lesions last how long? |
Insect bite --> lesions for 1-2 weeks!
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What pathogen:
SCARLET FEVER |
Strep
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What dz:
erythematous, fine, SANDPAPER RASH in skin creases |
Strep --> scarlet fever
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What dz:
Dusky red macules (symmetrical) --> sharply demarcated wheals --> target lesions |
Erythema multiforme
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Erythema multiforme:
-symm? -progression of lesions |
Symm
red macules --> demarcated wheals --> targets |
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Erythema multiforme: underlying mxn?
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ACUTE HYPERSENS
-most commonly 2/2 HSV (may see after meds) |
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Erythema multiforme: how long do individual lesions last?
|
1-3w
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What dz:
Herpes infection --> target lesions lasting 1-2 weeks |
Erythema multiforme
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Drug eruptions: all due to type 1 hypersens?
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No - can be non-immunologic trigger of mast release (e.g. opiate, NSAID)
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Erythema infectiosum: where does reticular rash appear? (body parts)
|
Trunk, extrems
(NOT face - slapped) |
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Erythema infectiosum: what pathogen?
|
Parvo B19
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Name for:
Lyme dz papule --> large erythematous, annular patch |
Erythema migrans
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Erythema migrans: due what dz?
|
LYME
(initial large erythem patch) |
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Difference b/w:
Erythema migrans vs. Erythema multiform |
Migrans: Lyme bite --> erythem patch
Erythema multiform: HSV infxn --> acute HYPERSENS --> maculs -> wheals --> targets |
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What dz:
3-5d fever --> pink maculopapular rash on trunk --> face and extrems |
Roseola (HHV-6)
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Roseola: due what pathogen?
|
HHV-6
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Roseola: fever?
|
Yes - fever 3-5d --> pink maculopapular rash on trunk & extrems
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Name for:
Cradle cap |
Seborrh dermatitis
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What dz:
Erythematous plaques with GREASY YELLOW SCALE |
Seborrh dermatitis (e.g. cradle cap)
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Can Cradle Cap spread?
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Yes - may see ears/neck --> DIAPER AREA
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Causes what dz:
Malassezia |
Seborrh dermatitis (older pts)
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Eczema/atopic derm: common what AREA of scalp?
|
POSTERIOR
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Eczema: flexor or extensor?
|
EXTENSOR
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Diaper candidiasis: peaks what age?
|
7-10mo
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Psoriasis: waxy or non-waxy scale?
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NON-WAXY
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Childhood psoriasis: what % pts have FHx?
|
40% have FHx psoriasis
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White or black head:
Open comedone |
BLACK
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Folliculitis & Furuncolosis: due what pathogen?
|
STAPH
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Name for:
PAPULES in beard area |
Pseudofolliculitis
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Pseudofolliculitis:
-where located? -papules or pustules? |
BEARD (adj hair follicles)
PAPULES (NOT pustules) |
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Acne: due blockage of what type of gland?
|
Pilosebacious
Blockage --> sebum --> superinfect w/proponiobacterium |
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Erythema nodosum: underlying mxn?
|
HYPERSENS rxn
2/2 infxn, drug, IBD |
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Erythema nodosum:
-tender? -pustular? |
TENDER
NODULAR - not pustular |
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Leads to what dz:
-block pilosebacious gland -block apocrine follicular unit |
Piloseb --> acne
Apocrine --> hidranetitis suppurative |
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Hidradenitis suppurative:
Due blockage what unit? |
APOCRIN
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Hidradenitis suppurativa:
Superinfected with what pathogens (2) |
Staph aureus
Strep pyogenes |
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Hidradenitis suppurativa: what is distribution in:
-M -F |
M: perineal & perianal
F: groin, axilla, inframamm |
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Rosacea: see in children?
|
early form in adols
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Rosacea: see what TYPES of lesions (mac/pap/pust, etc)
|
Papules & micropustules
NOT comedones |
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What dz:
Redness on malar & nasal surface --> worse with EtOH/spicy/temp/stress |
Rosacea
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Rosacea: how tx?
|
topical METRONIDAZOLE
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Perioral dermatitis: variant of what skin dz?
|
ROSACEA
(RANDOM!!!!!) |
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What dz:
Erythema, scaling & papules/pustules around mouth, nose, eyes of adolescent (*no comedones) |
Perioral dermatitis (a variant of rosacea)
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Perioral dermatitis: see comedones?
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NO! (imporant)
See erythema, scaling, papules, pustules |
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Perioral dermatitis: how tx?
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Topical metronidazole
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Chronic contact dermatitis: what type of hypersens rxn? onset how long after contact?
|
TYPE IV
Onset 24-72h s/p contact |
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Chronic contact dermatitis:
Resolves after how long avoidance |
days-weeks
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Chronic contact dermatitis:
Commonly due to what med? |
TRIPLE ANTIBIOTIC THERAPY --- BACITRACIN
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Bacitracin: can CAUSE what skin dz?
|
Chronic contact dermatitis
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Poison ivy/oak/sumac:
-cause what skin dz (name) -what type of hypersens |
Chronic contact dermatitis
TYPE IV |
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Nickel:
-cause what skin dz (name) -what type of hypersens |
Chronic contact dermatitis
TYPE IV (SAME AS POISON IVY, etc) |
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How are skin lesions different?:
Acute vs chronic contact dermatitis |
Acute: vesicles, edema, erythema, extremely pruritic
Chronic: no vesicles |
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Impetigo: what 2 pathogens
|
Staph aureus
Strep pyogens (GAS) |
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Impetigo: how tx? how tx if MRSA w/abscess?
|
TOPICAL MUPIROCIN
if comp --> systemic abx |
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Tinea corporus:
-what CLASS of pathogen? -expect what exosure? |
Fungus
Animal exposure |
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What dz:
Annular, well-circumscribed scaly plaque w/raised border --> center becomes brown OR hypopigments --> enlarges/coalesces --> mildly pruritic |
Tinea corporus (ringworm)
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Tinea corporus:
-well circumscribed? -pruritic? |
WELL CIRCUM!
Mildly pruritic OR asympt |
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Tinea corporus:
how dx? |
CLINICAL
can confirm w/KOH scraping --> branches & rod-shaped septated hyphae |
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What dz:
coin-shaped lesions on legs & buttocks |
Nummular eczema
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Nummular eczema:
-where distrib? -scale? |
Buttocks & legs
Scale (sim tinea) |
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Pityriasis alba:
-hypo or hyperpigmentation? -associated w/what exposure? |
Hypopigment on face/neck/upper trunk
SUN exposure |
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What dz:
Hypopigmented lesions 0.5-5cm with well-defined border on face, neck, upper trunk s/p sun exposure |
Pityriasis alba
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What dz:
Large scaly plaque with raised border --> scaly papules & plaques on lines of cleavage |
Pityriasis rosea
|
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#1 etio diaper rash
|
Irritant dermatitis
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What dz:
Diaper rash on CONVEX surfaces of skin; spares intertriginous creases |
Irritant dermatitis
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Irritant dermatitis: how tx (what med)?
|
Zinc oxide (cream, ointmnet)
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Irritant dermatitis --> diaper rash:
Inv intertriginous crease? |
No
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What dz:
Diaper rash w/papules --> plaques & satellites |
Diaper candidiasis
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Diaper candidiasis: how tx?
|
Nystatin
Imidazole, miconazole, ketoconazole effective but not approved by FDA |
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What dz:
Diaper rash + streaks of blood on stool |
GAS (strep pyogenes)
|
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Can diaper rash 2/2 strep pyogenes lead to systemic infxn?
|
YES
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Diaper rash 2/2 GAS (pyogenes):
how tx? |
Oral abx
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Diaper rash: can be caused by what vitamin deficiency?
|
Zinc
(e.g. acrodermatitis enteropathica, CF) |
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What dz:
Diaper rash --> crusty, weepy, may bleed |
Langerhans cell histocytosis
|
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Langerhans cell histocytosis: how dx?
|
skin bx
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Acute urticaria: how tx? (2)
|
OTC loratidine/ceterizine --> oral prednisone
*NOT topical steroid (wide distrib) |
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Seborrheic dermatitis: how tx:
-infant -older child |
Infant: baby oil & brush --> medicated shampoo --> topical hydrocortisone
Older: ketoconazole cream |
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Comedonal acne:
-OTC drug? -Drug of choice? -Add which abx? |
OTC: benzoyl peroxide (BPO)
#1: Retinoids (Tretinoin, adapalene) TOPICAL abx: clinda, erythro |
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Comedonal acne:
-OTC drug? -Drug of choice? -Add which abx? |
OTC: benzoyl peroxide (BPO)
#1: Retinoids (Tretinoin, adapalene) TOPICAL abx: clinda, erythro |
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Inflammatory acne: add which drug?
|
ORAL tetracycline, OCPs
|
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Inflammatory acne: add which drug?
|
ORAL tetracycline, OCPs
|
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Retinoids: apply what time of day?
|
NIGHT
photosens --> sunburn |
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Acne:
Apply retinoid & BPO at same time? |
NO - BPO inactivates retinoid
Retinoid at night (photosens) BPO in AM |
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Retinoid: apply to moist or dry skin?
|
BONE DRY
(moisture makes more irritating) |
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Doxycycline: not used under what age?
|
no use <9yo (dental stain)
|
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What acne medicine:
S/E pseudotumor cerebri |
Doxy
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Chronic contact dermatitis:
-use steroid? dosing? |
Medium topical steroid bid x 2w
|
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Pediculosis capitis:
How tx if you find nits but no adult lice on pt? |
NO TX
Only tx if find adult |
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Pediculosis capitis:
Is vinegar or suffocating-ointment effective? |
No
|
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Permethrin:
Tx what dz? |
Pediculosis capitis (lice)
|
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Permethrin shampoo: kill lice ova?
|
NO - only kill adults (increasing resistance)
use 2-3x per WEEK |
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Malathion: tx what dz?
|
Pediculosis capitis (lice)
|
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Pediculosis capitis:
Most effective drug? |
Malathion 0.5% topical
(Lindance less effective 2/2 resistance) |
|
Tx what dz:
Permethrin 5% cream at night --> wash off in AM |
Scabies
(permethrin shampoo also used for lice) |
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Scabies: perform O/N permethrin washes how often?
|
initial --> once again in a week
|
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Scabies: what is most persistent sx? how tx?
|
Itching may persist wks
Topical steroid, OTC diphenhydraminne |
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Scabies: how tx if no response to permethrin (or allergy)?
|
IVERMECTIN
(only FDA approved for >15kg) |
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Warts:
What fraction spont resolve in 2 yrs? |
2/3
|
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Warts:
OTC salicyclic acid useful? |
YES
|
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Warts: which more effective:
salicyclic acid OR liq N2 |
SALICYCLIC ACID
|
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Warts:
Cantharidine effective? |
UNCLEAR
|
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Warts:
Candidal Ag therapy effective? |
LIMITED EVIDENCE
(immunotherapy) |