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PEBC > Lice & Scabies > Flashcards

Lice & Scabies Flashcards

1
Q

Three species of lice exist:
1.
2.
3.

A

Public Lice
Head Lice
Body Lice

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2
Q

Adult lice can live up to how many days on the scalp?

A

30 days

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3
Q

True or False: scabies or lice are not transmitted between humans and animals

A

TRUE, Pets do not transmit any type of human lice and should not be treated.

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4
Q

Diagnosis / treatment of any type of lice requires detection of ?

A

Live Lice, treatment should not be initiated unless there is live lice visualized

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5
Q

Non Drug measures for lice:
1.
2.
3. Mechanically remove head lice

A
  1. identify and examine potential human contacts (especially hair to hair contact or sexual contact for public lice)
  2. Treat personal items or home/room
    - laundering items in hot water cycle
    - seal non washable items in bag for 2 WEEK
    - vacuum thoroughly
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6
Q

How long should ones non-washable items be bagged for in lice ?

A

At least 2 weeks

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7
Q

Treatment of lice should be repeated in __ days

A

7 days

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8
Q

True or False:
Family members and close contacts of individuals with head lice should be examined and treated at the same time if infested

A

True

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9
Q

What are the 4 drug treatment options for the treatment of lice?
1.
2.
3.
4.

A
  1. Permethrin 1%
    (Nix)
  2. Pyrethrins/piperonyl butoxide (R&C)
  3. Isopropyl myristate/cyclomethicone (Results)
  4. Dimeticone 50% (NYDA)
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10
Q

These two treatment options for lice are neurotoxic insecticides:
1.
2.

A
  1. Permethrin 1%
  2. Pyrethrin/piperonyl butoxide
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11
Q

This therapy for lice disrupts wax layer of louse exoskeleton physical kills VIA DEHYDRATION

A

Isopropyl myristate/cyclomethicone

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12
Q

This therapy for lice is silicone based oils that coats louse and physically kills via SUFFOCATION

A

Dimeticone 50%

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13
Q

First line treatment for lice therapy ?
1.
2.

A
  1. Permethrin 1%
  2. Pyrethrins/piperonyl butoxide
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14
Q

2nd Lind treatment for lice ?
1.
2.

A
  1. Isopropyl myristate/cyclomethicone
  2. dimeticone 50%
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15
Q

Permethrin 1% and Pyrethrins/piperonyl butoxide are contraindicated in children < ______ ?

A

2 months old

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16
Q

Isopropyl myristate.cyclomethicone is contraindicated in children < _____ ?

A

2 years old

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17
Q

dimeticone 50% is contraindicated in children < ____ ?

A

2 years old

18
Q

Isopropyl myristate/cyclomethicone and dimeticone 50% are both contraindicated in __________ & __________

A

pregnancy and breastfeeding

19
Q

These two lice therapies are unlikely to develop resistance ?
1.
2.

A

Isopropyl myristate/cyclomethicone & dimeticone 50%

20
Q

Most common side effect associated with lice therapy ?

A

Local Irritation

21
Q

________ is CONTRAINDICATED in chrysanthemum allergy, possibly ragweed allergy due to cross-sensitivity

A

Pyrethirins

22
Q

_________ is likely safe in chrysanthemum/ragweed allergy

A

Permethrins

23
Q

Application of all lice products are similar however Permethrin’s initial step varies compared to the rest, explain?

A

Hair must be WASHED with CONDITIONER-FREE shampoo and towel dry. Treatment is applied to damp hair and scalp

Leave treatment on for 10 minutes then rinse
then nit comb
and may repeat in 7 days

24
Q

Application of all lice products are similar however Dimeticone varies in its own unique way, explain ?

A

Applied to dry hair and scalp, but LEAVE ON FOR 30 MINUTES and nit comb

THEN LEAVE ON FOR ATLEAST 8 HOURS before washing off

25
Q

In the case of lice treatment failure:
1.
2. permethrin 5% cream
3. oral tmp-smx with permethrin 1%
4. Oral ivermectin

A
  1. try another agent different class
26
Q

Itching alone is NOT a sign of treatment failure, itching may persist for several days after treatment. Either of these two may be used for relief:
1.
2.

A

An oral antihistamine or low-potency topical corticosteroid may be required for relief

27
Q

Scabies is a highly contagious ________ skin infection

A

parasitic

28
Q

Scabies primarily spreads through?

A

Direct contact

29
Q

True or False:
Pharmacist can diagnose Scabies?

A

False, diagnosis must be made by HCP

30
Q

Scabies prevalence increases in:
1.
2.

A
  1. crowded conditions
  2. institutional environments
31
Q

Common signs and symptoms of scabies:
1.
2.

A
  1. intense itching that worsens at night
  2. burrows on hands and flexor surfaces (white grey linear or wavy lines beneath skin surface)
32
Q

This type of scabies occurs ion immunodeficient patients and is more contagious. It requires aggressive treatment

A

Crusted or Norwegian scabies - pruritus may be absent due to altered immune status. patient presents with exfoliating scales

33
Q

True or false: In scabies all contacts within preceding month require treatment even if asymptomatic

A

True

34
Q

Non drug options in treatment of scabies involves
1. avoid sharing belongings
2. wash linens and clothing in hot cycle
3. seal items for at least _______
4. vacuum areas

A
  1. 5-7 days
35
Q

For headlice when can one return to school or work?

A

After first treatment

36
Q

For scabies when can one return to work or school?

A

one day after treatment

37
Q

First line treatment for scabies:
1.

A
  1. Permethrin 5%
38
Q

Second line treatment for scabies:
1.

A
  1. Sulfur 8-10%
39
Q

Permethrin 5% in scabies is contraindicated in infants _____

A

< 3 months old

40
Q

Sulfur 8-10% is safe in infants ____

A

< 3 months old

41
Q

Scabies treatment options safe in pregnancy and breastfeeding?

A
  1. permethrin 5%

Sulfur safe in pregnancy

42
Q

Main side effects associated with sulfur scabies treatment?
1.
2.
3.

A
  1. irritation
  2. malodorous
  3. stain clothing

PEBC (35 decks)

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