6- Contact Derm

Question 1

Inflammatory reaction of the skin from exposure to a substance that causes eruptions

No previous exposure necessary

Answer 1

Irritant contact dermatitis

Question 2

Acquired sensitivity to various substances that produce inflammatory reactions only in persons who have been previously sensitized

Answer 2

Allergic contact dermatitis

Question 3

Pain and burning more common in this type of contact dermatitis

Answer 3

Irritant

Question 4

Alkalis penetrate and destroy deeply because they:

Answer 4

Dissolve keratin

Question 5

Principal compounds in alkalis

Answer 5

Sodium
Potassium
Ammonium
Ca hydroxide

Question 6

Powerful acids are______ whereas weaker acids are _______

A. Astringent
B. Corrosive

Answer 6

B

A

Question 7

What type of acid produces a brownish charring of the skin, beneath which is an ulceration that heals slowly

Answer 7

Sulfuric acid

Question 8

This acid is used more widely than any other acid in industry

Answer 8

Sulfuric acid

Question 9

This acid causes deep burns

Tissue is stained yellow

Answer 9

Nitric acid

Question 10

One of the strongest inorganic acids, capable of dissolving glass

Answer 10

Hydrofluoric acid

Question 11

This acid is used in the manufacturing of pigments

Answer 11

Titanium hydrochloride

Question 12

What to do if you come in contact with titanium hydrochloride

Answer 12

Wipe away

Water causes burns

Question 13

Acid in tear gas that can cause dermatitis

Answer 13

Chloroacetophenone

Question 14

Petrolatum dermatitis from impure petroleum jelly or lubricating oil manifests as

Answer 14

Verrucous thickening of skin

Question 15

What type of hypersensitivity

Allergic contact dermatitis

Answer 15

Cell mediated Type IV

Question 16

Application of substances suspected to be the cause to intact uninflamed skin usually on upper back

Answer 16

Patch test

Question 17

Patches in patch test are removed after_____ and reevaluated after ______

Answer 17

48 hours

Day 4 or 5

Question 18

In photopatch test, a standard patch test is applied for 48h then exposed to ______ J/m2 of UVA and read after another 48 hours

Answer 18

5-15

Question 19

Most frequent site for nail polish dermatitis

Answer 19

Eyelids

Question 20

Earlobe dermatitis is indicative of sensitivity from ______

Answer 20

Nickel

Question 21

Deodorant and clothing dye can cause dermatitis in the axillary area. Which part of the axilla is involved in what substance?

Answer 21

Deodorant-axillary vault

Clothing dye- axillary fold

Question 22

Most common cause of allergic contact dermatitis in florists

Answer 22

Peruvian lily

Question 23

Difference between dermatitis and fungal infection on the foot

Answer 23

Toe webs involved in fungal infections

Question 24

Dermatitis from metals is usually due to

Answer 24

Nickel and chromates

Question 25

Most common cause of allergic contact dermatitis in children and adults

Answer 25

Nickel

Question 26

Leading cause of allergic contact dermatitis associated with cosmetics

Answer 26

Fragrance

Question 27

Chemical in hair dye that can cause dermatitis

Answer 27

Phenylenediamine

Question 28

Hair bleaches contain ________ that can cause dermatitis

Answer 28

Ammonium persulfate

Question 29

Chemical found in most so called natural products that is an allergen

Answer 29

Propolis

Question 30

Most common sunscreen allergen

Answer 30

Oxybenzone

Question 31

Least irritating antiperspirant

Answer 31

Aluminum chlorhydrate

Question 32

Which drug induces the highest rate of allergic reactions

Answer 32

Clonidine

Question 33

Produce sensitization of skin when applied topically, when ingested, an acute flare at site of contact dermatitis may occur

Answer 33

Anamnestic (recalled) eruption

Question 34

Most common topical local anesthetic that can cause dermatitis

Answer 34

Benzocaine

Question 35

Antibiotics that most commonly cause dermatitis

Answer 35

Neomycin | Bacitracin

Question 36

Wheal and flare reaction occurring when a substance is applied to the intact skin

Answer 36

Contact urticaria