Practice Question Answers: Allergic Contact Dermatitis, Part 2

1. Which of the following is not a component of fragrance mix?

a. abietic acid

b. α-amylcinnamaldehyde

c. geraniol

d. hydroxycitronellal

e. oakmoss

2. A patient is referred for patch testing for suspected allergic contact dermatitis and is found to have positivity to disperse blue dye 106. The patient should avoid all of the following except:

a. black-colored clothing

b. pure acetate clothing

c. pure polyester clothing

d. purple-colored clothing

e. red-colored clothing

3. A patient with a documented contact allergy to ethylenediamine dihydrochloride should avoid all of the following systemic medications except:

a. aminophylline

b. disulfiram

c. hydroxyzine

d. meclizine

e. promethazine

4. Formaldehyde can cross-react with all of the following except:

a. diazolidinyl urea

b. DMDM hydantoin

c. imidazolidinyl urea

d. para-aminobenzoic acid

e. quaternium-15

5. Colophony can be found in all of the following trees except:

a. cedars

b. firs

c. junipers

d. maples

e. pines