AANP Dermatology

Question 1

A patient presents with a well-demarcated, silvery-scaled plaque on the extensor surface of the elbow. What is the most likely diagnosis?

Accepted Answer

Psoriasis

Answer

Psoriasis classically presents as well-demarcated erythematous plaques with silvery scales on extensor surfaces such as the elbows and knees.

Question 2

Which finding is most associated with a melanoma rather than a benign nevus?

Accepted Answer

Irregular border and multiple colors

Answer

The ABCDE criteria for melanoma include Asymmetry, Border irregularity, Color variation, Diameter >6mm, and Evolution—irregular borders and multiple colors are hallmarks.

Question 3

A patient with a history of atopy presents with intensely pruritic, flexural rashes since childhood. What is the most likely diagnosis?

Accepted Answer

Atopic dermatitis (eczema)

Answer

Atopic dermatitis typically begins in childhood, is associated with the atopic triad (asthma, allergic rhinitis, eczema), and preferentially affects flexural areas.

Question 4

What is the first-line treatment for mild-to-moderate acne vulgaris characterized by comedones and a few inflammatory papules?

Accepted Answer

Topical retinoids and/or benzoyl peroxide

Answer

Topical retinoids normalize follicular keratinization and benzoyl peroxide has antimicrobial properties; both are recommended as first-line agents for mild-to-moderate acne.

Question 5

A patient presents with a target-like skin lesion with central blistering after starting a new antibiotic. What condition should be suspected?

Accepted Answer

Erythema multiforme

Answer

Erythema multiforme is characterized by target lesions (three concentric zones) and is commonly triggered by HSV infection or medications such as sulfonamides and penicillins.

AANP - American Association of Nurse Practitioners Practice Test

AANP - American Association of Nurse Practitioners Practice Test

AANP Dermatology