Pediculosis

Question 1

How is head lice spread?

Answer 1

Through close personal contact

Question 2

What is pediculosis?

Answer 2

lice

Question 3

When do head lice outbreaks typically occur?

Answer 3

When schools open (Aug - Nov)

Question 4

What is the most common type of lice infestation?

Answer 4

Head lice

Question 5

How long can lice stay away from the host before dying?

Answer 5

Approx. 24 hours

Question 6

What do adult lice feed on?

Answer 6

Blood

Question 7

Which type of lice can actually transmit disease?

Answer 7

Body lice

Question 8

Where do body lice live?

Answer 8

In clothing, especially in seams and folds of underclothes

Question 9

What are some infections that body lice can transmit?

Answer 9

Typhus and trench fever

Question 10

How can you try to prevent body lice?

Answer 10

Proper hygiene: showers, change clothes

Homeless people have a higher risk of body lice

Question 11

What are some types of non-pharmacological therapy?

Answer 11

Avoid direct physical contact with those infected with lice

Wash clothing and bedding in hot water and dry on high heat in dryer

Wash hair combs and brushes in very hot water

Clean carpets, rugs, furniture (do not use insecticides)

Body lice: appropriate body hygiene

Recommend lice comb

Question 12

Can the pediculicide kill 100% of the eggs?

Answer 12

No. Not all eggs have developed a nervous system that the pediculicide acts upon to work.

Question 13

What are 3 characteristics of ideal lice treatment?

Answer 13

1. Economical
2. Effective
3. Safe

Question 14

What are the most common OTC pharmacological agents used for lice?

Answer 14

Permethrin

Pyrethrin

Question 15

Permethrin 1% can be used in what ages?

Answer 15

Older than 2 months old

Question 16

If you are allergic to chrysanthemums, what lice treatment agent can you NOT use?

Answer 16

Pyrethrin

Question 17

What are exclusions for self-care for pediculosis (head lice).

Answer 17

1. Hypersensitivity to pediculicide ingredients
2. Presence of secondary skin infection in lice-infected area
3. Lice infection of eyelids or eyebrows
4. Pregnancy or breast-feeding

Question 18

What ages can you use pyrethrin?

Answer 18

2 years old and up

Question 19

Which of the following can be used in patients 6 yo or older and is contraindicated in patients younger than 24 months old?

A. benzoyl alcohol (Ulesfia)
B. Malathion (Ovide)
C. Permethrin
D. Spinosad (Natroba)

Answer 19

B

Question 20

What are the safety concerns for malathion (Ovide)?

Answer 20

…

Question 21

Which of the following does not require reapplication?

A. Invermectin

Answer 21

A

Question 22

What are some challenges to pharmacological treatment of pediculosis?

Answer 22

Pg 15

Question 23

Which OTC product has seen higher resistance?
A. Permethrin
B. Pyrethrins

Answer 23

B.

Higher resistance –> decreased efficacy

Question 24

Which OTC product can be used on pubic lice and body lice as well as head lice?
A. Permethrin
B. Pyrethrins

Answer 24

B

Question 25

If you do a comb only method, how long must you do this method?

Answer 25

Daily for 2-3 weeks

Question 26

How is Nuvo lotion: centaphil cleanser supposed to work?

Answer 26

Smothers the lice buy “shrink wrapping” the lice