Emergency Medicine Pediatric Dermatology and Infectious Diseases: Review Questions David A. Wald, DO, FACOEP Dr. Wald is an Assistant Professor of Emergency Medicine, Assistant Residency Director, and Co-Director, Emergency Medicine Clerkship, Department of Emergency Medicine, Temple University Hospital, Philadelphia, PA. Choose the single best answer for each question.
	1. A 16-year-old boy is brought to the emergency department (ED) for evaluation of a skin rash. The patient first noticed a large, scaly, pink, oval-shaped lesion on his trunk 6 days ago. He now has numerous smaller, oval-shaped papular lesions on his trunk arranged in a "Christmas tree" pattern. Which of the following is the most likely diagnosis for this patient? Contact dermatitis Nummular eczema Pityriasis rosea Rhus dermatitis Tinea corporis Click here to compare your answer. 2. Which of the following skin reactions is characterized by symmetrical, red, tender nodules that are 1 to 5 cm in diameter and are usually located over the pretibial surfaces? Erythema multiforme Erythema nodosum Fixed drug eruption Hereditary angioedema Urticaria Click here to compare your answer. 3. Which of the following skin infections does NOT respond to treatment with topical antifungal creams? Tinea capitis Tinea corporis Tinea cruris Tinea pedis Tinea versicolor Click here to compare your answer.		4. An 11-month-old male infant is brought to the ED for evaluation. His mother reports that he developed a fever 4 days ago. His temperature has been as high as 103°F and has been minimally responsive to acetaminophen. His mother states that yesterday “the fever broke,” but the boy developed a rash. She says that lesions first appeared on his trunk and have since spread to his extremities, face, and neck. On physical examination, the infant has diffuse maculopapular lesions. Which of the following is the most likely diagnosis for this patient? Erythema infectiosum Roseola Rubella Rubeola Varicella Click here to compare your answer. 5. A 2-year-old girl is brought to the ED for evaluation of a fever that has persisted for 5 days. Her parents also report that her hands and feet have been swollen. On physical examination, the child has an injected pharynx and a reddish tongue. She also has cervical lymphadenopathy and a morbilliform rash. Which of the following is the most likely diagnosis for this patient? Kawasaki syndrome Staphylococcal scalded skin syndrome Stevens-Johnson syndrome Streptococcal scarlet fever Systemic lupus erythematosus Click here to compare your answer. 6. A 5-year-old boy is brought to the ED for the evaluation of intermittent abdominal pain and a low-grade fever that has lasted for 2 days. His mother has noticed that his feet are swollen and that he has developed a rash. On physical examination, the child has palpable purple lesions on his lower extremities and buttocks. Which of the following is the most likely diagnosis for this patient? Ecthyma Erysipelas Henoch-Schönlein purpura Meningococcemia Rocky Mountain spotted fever Click here to compare your answer.
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