Pediculosis Flashcards
define pediculosis
infestation of lice
what are the three types of lice?
head, body, and pubic lice
another term for pubic lice?
crabs
what age group is head lice commonly found in
3-12
what kind of place do head lice easily spread?
elementary school and daycares
does socioeconomic group affect risk of getting head lice?
no, affects all groups
how is head lice spread?
close contact and sharing personal items
are males or females more susceptible to head lice?
females
what race is affected less frequently by head lice?
african americans
where do body lice reside?
in clothing
what dieases can body lice transmit?
typhus and trench fever
what is the major risk fact associated with body lice?
poor hygeine
do pubic lice only affect pubic areas?
no can be in eyebrows, mustaches, armpits, etc…
what is the lifespan of a female head louse?
20-30 days
how many eggs can a female louse lay in her life-span
up to 150 eggs/nits
how many days does it take for eggs to hatch (head lice)?
5-10 days
how often do the cycles usually repeat?
every 3 weeks
how many days does it take for nymphs to mature?
8-9 days
can someone with a secondary infection be treated for lice via OTC medication?
no
can a woman who is pregnant or breastfeeding be treated for lice via OTC medication?
no
how many times can you try to get rid of an infestation before you should advise a medical referral?
twice, if it doesn’t work the second time the exclude
can infestation of the eyelids or eyebrows be handled OTC?
no
what are the two main OTC products for lice?
pyrethrin and permethrin
what is the MOA of pyrethrins
Blocks transmission of nerve impulses causing paralysis and death
what is piperonyl butoxide?
a side ingredient in pyrethrin
what does piperonyl butoxide do?
inhibits the breakdown of pyrethrin
can you use pyrethrin products on head lice, pubic lice, or both?
both
you should not apply pyrethrin more than twice in a __ hour period
24
when does pyrehtrin become fully effective?
several hours, but most effective after second application in 7-10 days
allergies to one of what three things is a reason for self-exclusion?
pediculicide ingredients, chrysanthemums, and ragweed
PT’s who are < __ years old should not use pyrethrin without consulting a physician
< 2 years old
PT’s who are < __ years old should not use permethrins without consulting a physician
< 2 months old
