2 Days Of Burning in Medicine / Internal Medicine — 29yo Man | Infectious Diseases | SMLE Q#20227
SMLE Question #20227
Medicine / Internal Medicine
Infectious Diseases
Objective: OBJ-99
Last updated: July 2026
A 29-year-old man presents to a primary care clinic with 2 days of burning pain and tingling over the left anterior chest, followed by a painful rash. Examination shows grouped vesicles on an erythematous base in a unilateral dermatomal distribution over the left T4–T5 region. He has no systemic symptoms and is otherwise well. Which of the following is the most appropriate way to confirm the diagnosis?
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