Allergic Contact Dermatitis, Part 4
As part of our commitment to resident education, Cutis is excited to offer this monthly section with board-relevant, easy-to-review material.
This month’s fact sheet will be the last in an ongoing series focusing on common allergens seen in practice and represents a high-yield topic for board examination purposes.
Practice Question Answers
1. The most common allergen of hand dermatitis in hairdressers can cross-react with which of the following allergens?
a. benzocaine
,
b. para-aminobenzoic acid
c. procaine
d. sulfanomides
e. all of the above
2. Patients with a documented allergy to quaternium-15 should avoid all of the following ingredients except:
a. bronopol
b. diazolidinyl urea
c. DMDM hydantoin
d. imidazolidinyl urea
e. paraben mix
3. Which of the following is a screening agent for hydrocortisone allergy?
a. budesonide
b. clobetasol
c. desoximetasone
d. paraben mix
e. tixocortol pivalate
4. This allergen often is found in black synthetic henna tattoos:
a. paraben mix
b. potassium dichromate
c. PPD
d. quaternium-15
e. thimerosol
5. A patient with a documented allergy to paraben mix also should avoid the following agent:
a. bronopol
b. diazolidinyl urea
c. DMDM hydantoin
d. PPD
e. thiuram mix
