Lice & Mites

What is the scientific name for HEAD lice?

pedicures humans capitis

What is the scientific name for BODY lice?

Pedicures humans corporis

lice feed on human _____ several times a day and reside close to the _____ in order to maintain their _____

blood; scalp/skin; body temperature

what is the geographic distribution for lice?

worldwide → especially KIDS

_____ tend to be more affected by lice

females

What are lice eggs called?

nits

head/body lice is spread via _____

close contact

lice typically die within _____ of being away from the scalp/skin

1-2 days

How do you diagnose head/body lice?

find live nymph or adult on scalp or hair

What insect is this?

head/body lice

Body lice resides on the _____ or _____ and migrate periodically to the _____ to feed

clothing; fomites; body

Can body lice spread disease?

YES

Body lice eggs are glued to _____

fibers on clothing

Head lice are generally confined to the _____, and reside on the human host at _____

scalp; ALL times

can head lice spread disease?

NO

Head lice eggs are typically found on _____

human hair

what insect is this?

public lice

Public lice have a _____ shape compared to head/body lice

broader

Public lice use their claws to grab onto the _____

pubic hair

What is the primary methods of treating head or public lice?

lice killing lotion/shampoo with permethrin or lindane

Lice are _____, while mites are _____

insects; arachnids

What is the scientific name for the itch mite?

Sacroptes scab var. hominis

S. scabiei mites will burrow into the _____ layers of the skin causing unbearable _____

sub corneal; nightly itch

Do S. scabiei mites burrow into deep tissue?

NO → never below the stratum corneum

S. scabiei mites are common in _____ spots

warm, moist

S. scabiei may appear as tiny _____ raised _____ that are about 1 cm long

grey/skin-colored; serpentine lines

S. scabiei mites typically take _____ before they become symptomatic, unless you have been _____

1-2 months; previously sensitized

S. scabiei îs a BIG problem in _____ patients

HIV/AIDS

Adult _____ S. scabiei mites will _____ as they _____ into the skin

females; lay eggs; burrow

What ectoparasite is this?

S. scabiei

What are the 3 month common areas that are affected by S. scabiei?

genitals, perianal, axilla

_____ causes thick crusts over the skin, this typically had lots of _____ but only minimal _____.

disseminated crusted scabies; mites; itching

Disseminated crusted scabies is commonly associated with _____ infections and can occur in patients who are _____ or have _____

secondary bacterial; immunosuppressed; AIDS

how do you diagnose Scabies?

skin scrapings

How do you treat Scabies?

creams, ivermectin and washing clothes

What ectoparasite is this?

S. scabiei