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Common Skin Conditions & Treatment Flashcards

7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Common Skin Conditions & Treatment flashcards as text

  1. A patient presents with depigmented macules in a perioral and periocular distribution. Which condition is most likely?

    Answer: Vitiligo

    Vitiligo causes sharply defined depigmented macules due to autoimmune destruction of melanocytes, frequently affecting the perioral, periocular, and acral areas.

  2. Which type of skin cancer most commonly arises from sun-damaged skin of the lower lip and presents as a scaly, non-healing ulceration?

    Answer: Squamous cell carcinoma

    Squamous cell carcinoma (SCC) commonly develops on the vermilion border of the lower lip from chronic UV exposure and may present as a non-healing ulcer or indurated plaque.

  3. Which feature of a pigmented lesion is most associated with a diagnosis of malignant melanoma using the ABCDE criteria?

    Answer: Diameter greater than 6mm

    A diameter greater than 6 mm (the size of a pencil eraser) is one of the ABCDE warning signs for melanoma, though early melanomas can be smaller.

  4. Lichen planus is classically described by the '6 P's.' Which of the following is NOT one of the 6 P's?

    Answer: Pustular

    The 6 P's of lichen planus are Pruritic, Purple, Polygonal, Planar, Papules, and Plaques — pustular lesions are not characteristic of lichen planus.

  5. A patient receiving oral isotretinoin for severe acne must be enrolled in which risk management program?

    Answer: iPLEDGE program

    The iPLEDGE program is the mandatory REMS program for isotretinoin due to its severe teratogenicity, requiring monthly pregnancy tests and contraceptive compliance.

  6. Which test is used to confirm a diagnosis of scabies when clinical suspicion is high?

    Answer: Mineral oil mount of burrow scraping

    A mineral oil mount of scrapings from a burrow allows microscopic visualization of the mite Sarcoptes scabiei, its eggs, or fecal pellets (scybala).

  7. Which biologic medication targets IL-17A and is approved for the treatment of moderate-to-severe plaque psoriasis?

    Answer: Secukinumab (Cosentyx)

    Secukinumab (Cosentyx) is a monoclonal antibody that specifically targets IL-17A, a key cytokine in the inflammatory pathway of psoriasis.