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122872 Microbiology

An active intravenous drug abuser presents to the emergency depament with fever of 5 days duration, a cough which is occasionally productive of blood, and pleuritic chest pain. Petechiae are present in his mouth and conjunctiva, and small linear hemorrhages are visible under his fingernails. Which of the following test results would MOST likely confirm the identity of the causative agent?

AAntibodies to p24 capsid antigen
BAntibodies to Trichinella spiralis antigen
CBlood culture of a catalase-positive, novobiocin-sensitive, gram-positive coccus
DBlood culture of a coagulase-positive, catalase positive, gram-positive coccus
Microbiology
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