17. A nasopharyngeal culture grows a predominance of a beta-…
17. A nasopharyngeal culture grows a predominance of a beta-hemolytic colony-type on sheep-blood agar at 18 hours. The isolate is susceptible to a 0.04 unit of bacitracin. The most likely identification is beta-hemolytic streptococcus, group A group D group B not group A, B nor D
Read Details6. Cerebrospinal fluid (CSF) should be cultured immediatel…
6. Cerebrospinal fluid (CSF) should be cultured immediately, but if delayed the specimen should be: 1. refrigerated at 4º – 6ºC 2. frozen at -20ºC 3. stored at room temperature for no longer than 6 hours 4. incubated at 37ºC and cultured as soon as possible
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