Y5 - Cutaneous parasitic infection (incl. scabies, lice) Flashcards
def of scabies
infestation of ectoparasite sarcoptes scabiei into the stratum corneum
how is scabies spread
direct contact with another individual with scabies
what are common clues in scabies diagnosis
intense pruritis and linear erythematous burrows at extremities
and erythematous papules in the axilla or genital area
epi of scabies
v common
children and elderly
when is scabies most common
winter
-due to increased crowding and prolonged survival of mites
what ectoparisite causes scabies
sarcoptes scabiei variety hominis
aetiology of scabies
parasite burrows into the stratum corneum following skin to skin contact, or transmission via shared clothing
is scabies contagious
highly contagious
signs and symptoms of scabies
in infants/children/elderly
Hx of overcrowding, itching in family members
itching which is worse at night
burrows
-wavy thread like whitish grey lines on the skin surface
what test is used for scabies
ink burrow test
-ink is wiped away and reveals a linear burrow
investigations of scabies
ectoparasite preparation
-presence of mites, eggs, faecal material
management of scabies non-pregnant/non-lactating adults or children
permethrin/ivermectin
management of children <5yrs and pregnant or lactating females
permethrin
management for babies <2months
sulfur 6% in pretroleum
complications of scabies
post-scabetic pruritis
-occurs as a reaction to mites, eggs, or faeces even after treatment
secondary infection
-strep/staph
