Insect Bits + Stings + Pediculosis

Question 1

N,N-Diethyl-M-Toluamide (DEET) works by…?

Answer 1

protecting against insect bites w/o killing the insect

Question 2

At what age is DEET not encouraged?

Answer 2

<2 months

Question 3

What % DEET does not provide additional protection, but may have longer repellent effect?

Answer 3

> 50%

Question 4

Permethrin 0.5% is designed to use only on ______

Answer 4

clothing + camping equipment

Question 5

Which insect repellent is promoted as being less odorous and irritating than DEET?

Answer 5

Picaridin

Question 6

What is the MOA of local anesthetics?

Answer 6

Reversible blockade of conduction of nerve impulses at the site of applications (produces loss of sensation

Question 7

Which should be applied first, sunscreen or insect repellent?

Answer 7

Sunscreen

Question 8

What’s wrong with products that have both insect repellent properties + sunscreen?

Answer 8

You either apply too much insect repellant or too little sunscreen

Question 9

How do phenols work?

Answer 9

Exerting topical anesthetic action by depressing cutaneous sensory receptors

Question 10

What is the recommended topical antihistamine?

Answer 10

Diphenhydramine .5-2%

Question 11

What is the MOA of topical diphenhydramine?

Answer 11

Depresses cutaneous receptors

Question 12

What is something to look out for topical diphenhydramine?

Answer 12

Dont use on large areas of body

Question 13

What is the MOA of counterirritants (camphor + menthol)?

Answer 13

Depresses cutaneous receptors

Question 14

What kind of properties does hydrocortisone 1% have?

Answer 14

Anti-inflammatory + antipruritic effect

Question 15

What are some adverse effects of hydrocortisone 1%?

Answer 15

Contact dermatitis, sensitization, burning sensation, skin irritation

Question 16

Which skin protectants help absorb fluids from weeping lesions?

Answer 16

Zinc oxide + calamine lotion

Question 17

Which skin protectant is a mild astringent w/ antiseptic properties?

Answer 17

Zinc oxide

Question 18

What does ammonia + baking soda do to venom?

Answer 18

Neutralize it

Question 19

What is the age exclusions for both pyrethrins + permethrins?

Answer 19

<2 yrs for pyrethrins

<2months for permethrins

Question 20

For the nonpharmacologic treatments of lice, you should wash your hairbrush, clothing, etc in ____ water and at least ___ degrees Fahrenheit

Answer 20

hot

130

Question 21

What is the MOA of synergized pyrethrins?

Answer 21

Blocks nerve impulse transmissions causing death within the parasite

Question 22

What is pyrethrin usually synergized w/?

Answer 22

piperonyl butoxide

Question 23

What is the MOA of piperonyl butoxide?

Answer 23

Limit the ability of lice to break down the pyrethrin

Question 24

Pyrethrin vs Permethrin, which has to be repeated?

Answer 24

Pyrethrin

Question 25

Which treatment only applies to head lice only?

Answer 25

Permethrin

Question 26

What is the MOA of permethrin?

Answer 26

Disrupts sodium channel and delaying repolarization causing death of parasite