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CMT > Pruritic Disorders > Flashcards

Pruritic Disorders Flashcards

1
Q

Scabies

general overview

A

highly contagious skin infection due to the mite Sarcoptes scabei

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2
Q

Scabies

pathophys

A
  • female bites burrow into the skin to lay eggs, feed, and defecate
  • these particles precipitate a hypersensitivity rxn
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3
Q

Scabies

clinical manifestations

3 components

A
  1. multiple, small, evidence papules w/ excoriations, linear burrows (hallmark)
  2. red, itchy happy wheels or nodules on the scrotum, genitalia, or body folds (pathognomonic)
  3. intense pruritis, esp at night
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4
Q

Scabies

dx

2

A
  • clinical
  • mineral oil prep
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5
Q

Scabies

tx

1

A
  • topical permethrin x2 applications, 1 wk apart
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6
Q

Scabies

when do you give oral permethrin?

A

can give to non-pregnant adults

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7
Q

Scabies

general measures

2 components

A
  1. treat all close contacts
  2. all clothing, bedding, etc isolated for 72 hrs, then washed & dried w/ high heat
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8
Q

Scabies

second line tx

A

lindane (cheaper, but NO PREG PTS or KIDS)

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9
Q

Pediculosis

how is it transmitted P2P?

3

A
  1. direct contact
  2. fomite exposure
  3. sexual transmission
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10
Q

Pediculosis

strongly related to?

A

poor hygiene practices

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11
Q

Pediculosis

who is head lice more common in?

2 components

A
  1. girls > boys
  2. kids 3-12 y/o
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12
Q

Pediculosis

clinical manifestations

2

A
  • primary: pruritis
  • may see lice or nits
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13
Q

Pediculosis

describe eggs

3

A
  • white
  • oval shaped
  • at base of hair shafts
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14
Q

Pediculosis

tx of head lice

2

A
  • topical permethrin x2, 1 wk apart
  • fine tooth comb to remove eggs
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15
Q

Pediculosis

tx of body lice

2

A
  • education on hygiene practices
  • topical permethrin 5% cream
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16
Q

Pediculosis

tx of pubic lice

3 components

A
  • topical permethrin 1% cream
  • pyrethrins
  • 10d course
17
Q

Pediculosis

general measures for tx

3

A
  1. hygiene improvement
  2. launder items in hot water & dry in high heat
  3. items that cannot be washed should be quarantined for 2 wks
18
Q

Lichen Planus

most commonly seen in who?

A

middle aged adults

19
Q

Lichen Planus

increased incidence with what infection?

A

Hep C

20
Q

Lichen Planus

associated with what?

3

A
  1. medication induced
  2. associated with graft vs host
  3. lymphoma
21
Q

Lichen Planus

what are the 6 P’s of clinical manifestation?

A
  1. purple
  2. polygonal
  3. plana
  4. pruritic
  5. papules
  6. plaques
22
Q

Lichen Planus

clinical presentation

2

A
  1. borders may have wickham’s striae
  2. Koebner’s phenomenon
23
Q

Lichen Planus

Wickham’s Striae

A

fine, gray white lines of skin and/or oral mucosa

24
Q

Lichen Planus

Koebner’s phenomenon

A

new lesions in previously unimpacted areas

25
Q

Lichen Planus

dx

A

clinical

26
Q

Lichen Planus

tx

2

A
  • high or super high potency topical corticosteroids
  • oral anti-histamines

intralesional corticosteroids

27
Q

Lichen Planus

tx for generalized or refractory disease?

1

A

oral glucocorticoids

28
Q

Lichen Planus

what occurs after 6-12mo in most patients?

A

spontaneous resolutions

29
Q

Lichen Simplex Chronicus

what is skin thickening secondary to?

A

repetitive rubbing and scratching

30
Q

Lichen Simplex Chronicus

clinical manifestations

1

A
  1. scaly, well-demarcated, rough, hyperkeratotic plaques w/ exaggerated skin lines
31
Q

Lichen Simplex Chronicus

tx

1 general measures, 2 meds

A
  1. avoid scratching lesions
  2. high potency topical corticosteroids, antihistamines
32
Q

Neurodermatitis

clinical presentation

2 components

A
  1. diffuse excoriations
  2. lichenified skin as secondary finding
33
Q

Neurodermatitis

what are diffuse excoriations secondary to?

2

A
  • chronic itch
  • repetitive rubbing, scratching, or picking at skin
34
Q

Neurodermatitis

associated with?

1

A

mood disorders

35
Q

Neurodermatitis

tx

3

A
  1. anti-histamines
  2. topical corticosteroids
  3. wound care
36
Q

Neurodermatitis

general care tx

2

A
  1. avoidance of scratching
  2. management of mood disorder

CMT (78 decks)

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