AANP Dermatology 3

Question 1

A patient with fair skin has a pearly, translucent nodule with telangiectasias on the nose. What is the most likely diagnosis?

Accepted Answer

Basal cell carcinoma

Answer

Basal cell carcinoma typically presents as a pearly or translucent papule or nodule with rolled borders and telangiectasias, most commonly on sun-exposed areas of the face.

Question 2

Which condition is characterized by salmon-colored patches in skin folds (axilla, groin) with fine scale that fluoresce coral-red under Wood's lamp?

Accepted Answer

Erythrasma

Answer

Erythrasma is a superficial bacterial infection caused by Corynebacterium minutissimum that produces coral-red fluorescence under Wood's lamp due to porphyrin production.

Question 3

A nurse practitioner diagnoses a patient with actinic keratosis. Why is treatment recommended even for asymptomatic lesions?

Accepted Answer

They are premalignant lesions that can progress to squamous cell carcinoma

Answer

Actinic keratoses are premalignant lesions caused by UV damage that can progress to invasive squamous cell carcinoma, justifying treatment even when asymptomatic.

Question 4

What finding on skin examination is most suggestive of scabies infestation?

Accepted Answer

Burrows in finger web spaces with intense nocturnal pruritus

Answer

Sarcoptes scabiei mites create linear burrows in thin-skinned areas like finger webs, with intense itching that worsens at night due to mite activity.

Question 5

Which topical agent is used as first-line treatment for rosacea with predominantly inflammatory papules and pustules?

Accepted Answer

Topical metronidazole or azelaic acid

Answer

Topical metronidazole and azelaic acid have anti-inflammatory properties and are first-line treatments for papulopustular rosacea; topical steroids can worsen rosacea.

AANP - American Association of Nurse Practitioners Practice Test

AANP - American Association of Nurse Practitioners Practice Test

AANP Dermatology 3