A 28-year-old man with a history of intravenous drug use presents with a painful, erythematous nodule on his forearm with purulent drainage. Blood culture grows methicillin-resistant S. aureus (MRSA). Which finding best distinguishes acute bacterial skin and soft tissue infection (ABSSSI) from impetigo in this clinical context?

See the options, answer & explanation

Sign in free to reveal the answer choices, the correct answer, the detailed explanation, and AI-powered insights for this question.