A patient appears in the emergency room with a submandibular mass. A smear is made of the drainage and a bewildering variety of bacteria are seen, including branched, gram-positive rods. Which of the following is the most clinically appropriate action?
Consider vancomycin as an alternative drug Determine if fluorescent microscopy is available for the diagnosis of actinomycosis Do no further clinical workup Suggest to the laboratory that low colony counts may reflect infection