Parasitic Infestations Flashcards Preview

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Flashcards in Parasitic Infestations Deck (19):
1

Chiggers- Eti

Infestation of larval form of trombiculid mites- found in humid environments. Create feeding tube, do not burrow

2

Chiggers- Sx

Cutaneous inflammation, intense pruitis, grouped papules & papulovesicles on legs, waistline and skin folds

3

Chiggers- Dx

Clinical presentation

4

Chiggers- Tx

1-2 week symptoms. Calamine, topical steroids, hydroxyzine or benedryl to aid sleep.

5

Chiggers- Prevention

Tuck pants in socks, wear repellant, soap & water will displace

6

Scabies- Eti

Obligate human parasite. 15-20 minutes of direct skin contact. Common to webbing of hands and skin folds

7

Scabies- Sx

Generalized pruetic rash- more intense at night. Face & neck unaffected. Lesions can be wide variety of shapes. Burrow!

8

Scabies- Dx

Visulization of mites, eggs of feces- skin scraping with mineral oil.

9

Scabies- Tx

Permetherin 5% cream. Tx all household members & sex contacts. Wash bedding, clothes & towels in hot water and dryer or leave in plastic bag for 72 hrs

10

Pediculosis- Eti

Louse infestation- vary by body part they infest

11

Pediculosis- Sx

Pruitis- delayed hypersensitivity reaction. Excoriations and secondary cellulitis.

12

Pediculosis- Dx

Live louse- Nits do not indicate active infestation. Common behind back of neck & ears

13

Pediculosis- Tx

1% permeterin cream- wash off for 10 min, repeat 7 days later. Disinfect clothing for body lice
Head- examine and treat household members
Pubic- examine and treat- screen for STDs

14

Bedbugs- Eti

Cimex lectularis- not implicated in spread of disease. Favor dark crevices. Can survive months without feeding

15

Bedbugs- Sx

Pruetic marculopapules in clusters or lines in unclothed areas. Dx with clinical characteristics of bite

16

Bedbugs- Tx

Symptomatic treatment of bites. . Contact pest control, wrap mattress in plastic bags, launder clothing

17

Fleas- Eti

Bites on lower extremities- near infestation. Breakast-lunch-dinner pattern.

18

Fleas- Sx

papular pruetic urticaria. Worse in atopic people- IgE mediated reaction

19

Fleas- Tx

Antihistamines, topical steroids, eradication of fleas