Parasitic Flashcards
(40 cards)
contagious ectoparasitic skin infection characterized by superficial burrows and intense itching
scabies
What is scabies also known as?
sarcoptic mange or the itch
What is the causative agent of scabies
Sarcoptes scabiei
Incubation period of scabies
4-6 weeks
Mode of Transmission
- Direct contact with a female mite
2.Skin to skin contact with an infected person
3.Sharing clothing, bedding, or towels from infected person
What is one of the signs and symptoms of scabies that is caused by a reaction within the skin to the feces of the mite and is worse after a hot shower and at night?
Pruritus
Winding, slightly raised gray lines along the skin
Burrows
Signs and Symptoms of scabies
Pruritus
Burrows
Scratch marks
Burning sensation
Common locations of burrows
Sides of the fingers
Between the fingers
Top of the wrist
Around the elbows and armpits
Around the nipples of the breasts in women
Genitalia of men
Around the waist
Lower part of the buttocks
Babies: soles of their feeet, palms of their hands and faces
Severe form of scabies wherein lesions are extensive and may spread all over the body; Scaly areas eventually take on a wart-like appearance
Crusted scabies
Complications of Scabies
Secondary bacterial infection - Impetigo
Diagnosis of Scabies
-Observing the characteristic burrows of the mites
-A sterilized needle can be used to explore the pearly bump at the end of the burrow, remove its contents, and place it on a slide to be examined
-The mite itself may then be identified under a microscope
Treatment and Management of Scabies
■Permethrin 5%
■ Malathion
■ Lindane lotion
■ 10% sulfur ointment
■ Neem oil
■ Tea tree oil at 5%
■ Ivermectin
■ chlorpheniramine
Prevention and Control Measures of Scabies
■ All family and close contacts should be
treated at the same time, even if
asymptomatic.
■ Cleaning of environment should occur
simultaneously, as there is a risk of
reinfection.
■ Wash and hot iron all material (such
as clothes, bedding and towels) that
has been in proximity to a scabies
infestation.
■ Proper hygiene
Infestation of lice (blood-feeding
ectoparasitic insects)
Pediculosis
Causative agents
● Pediculus humanus capitis
● Pediculus humanus corporis
● Phthirus pubis
MOT of Pediculus
Direct and Indirect Contact
Predisposing Factors (Pediculus)
■ overcrowding
■ unsanitary conditions
■ poor hygiene
Under signs and symptoms of Pediculosis characterized by
● Intense Itching
● Excoriation
● Matted, foul-smelling, lusterless hair
● Occipital and cervical lymphadenopathy
■ Pediculosis Capitis:
Under signs and symptoms of Pediculosis characterized by
● Skin irritation from scratching
● Maculae caeruleae on the thighs or
upper body
Pediculosis Pubis
What is the diagnosis of pediculosis wherein oval-grayish nits cannot be shaken loose?
Pediculosis Capitis - P.E.
TRUE OR FALSE:
the closer the nits are to the shaft, the shorter the infection has been present
False: The longer the infection has been present
What is the diagnosis test for pediculosis wherein characteristic skin lesions with nits are found on the clothing?
Pediculosis Corporis - P.E.
What is the diagnosis test for pediculosis wherein nits are attached to pubic hair, which feel coarse and graining upon touch
Pediculosis Pubis - P.E.