ATI RN
Integumentary System of Pediatrics Questions
Question 1 of 5
In humans, exposure of the skin to sunlight is required for
Correct Answer: A
Rationale: Sunlight triggers the synthesis of vitamin D in the skin by converting 7-dehydrocholesterol to previtamin D3.
Question 2 of 5
After a skin injury, the body initiates a wound-healing response. The first step of this response is the formation of a blood clot to stop bleeding. Which of the following would be the next response?
Correct Answer: B
Rationale: After clotting, the next step in wound healing is inflammation and tissue repair, involving increased production of connective tissue to rebuild the damaged area.
Question 3 of 5
A rash that is visible but not palpable consists of small solitary lesions of 0.5-1 cm in diameter. Which term best describes these lesions?
Correct Answer: A
Rationale: Macules are flat, non-palpable lesions <1 cm. Papules are palpable, patches are flat lesions >1 cm, plaques are palpable and larger, and wheals are edematous. The description fits macules.
Question 4 of 5
Match the condition with the appearance under the Wood lamp (ultraviolet light): Erythrasma
Correct Answer: A
Rationale: Erythrasma (Corynebacterium minutissimum) fluoresces pink-orange or coral-red under Wood lamp, matching A.
Question 5 of 5
A well-appearing newborn has a lacy, reticulated, red and/or blue cutaneous pattern over most of the body, which is prominent when the neonate is in a cool environment. What is the diagnosis?
Correct Answer: C
Rationale: Cutis marmorata is a physiologic lacy, reticulated pattern in newborns, prominent in cold environments. Others have different patterns/locations.