Infestations

Question 1

First line tx for scabies

Answer 1

Permethrin 5% cream

Others:

• Crotamiton 10%
• Lindane 1%

Question 2

Tx for chiggers

Answer 2

• Calamine lotion
• Topical corticosteroids
• 1st gen antihistamines

Question 3

Tx for lice

Answer 3

• 1% permethrin (Nix)

- Ivermectin 250 ug/kg for resistant disease

Question 4

Dx of chigger bites

Answer 4

• Usually signs and Hx of being in chigger prone areas

- Mites can sometimes be recovered by taping of skin

Question 5

Dx of scabies

Answer 5

• Burrows

- Skin scraping to look for mites and feces

Question 6

Dx of bedbugs

Answer 6

• Definitive Dx from finding bugs in home
• Linear series of bites suggestive
• Blood on sheets suggestive

Question 7

Dx of lice

Answer 7

Must find at least one live louse (nits not enough)